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id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Indice</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inizio</div> </a> </li> <li id="toc-Versione_assoluta_della_PPA" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Versione_assoluta_della_PPA"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Versione assoluta della PPA</span> </div> </a> <ul id="toc-Versione_assoluta_della_PPA-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Versione_relativa_della_PPA" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Versione_relativa_della_PPA"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Versione relativa della PPA</span> </div> </a> <ul id="toc-Versione_relativa_della_PPA-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Monete_apprezzate_e_deprezzate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Monete_apprezzate_e_deprezzate"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Monete apprezzate e deprezzate</span> </div> </a> <button aria-controls="toc-Monete_apprezzate_e_deprezzate-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Monete apprezzate e deprezzate</span> </button> <ul id="toc-Monete_apprezzate_e_deprezzate-sublist" class="vector-toc-list"> <li id="toc-Il_tasso_di_cambio_reale" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Il_tasso_di_cambio_reale"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Il tasso di cambio reale</span> </div> </a> <ul id="toc-Il_tasso_di_cambio_reale-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-L'indice_Big_Mac" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#L'indice_Big_Mac"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>L'indice Big Mac</span> </div> </a> <ul id="toc-L'indice_Big_Mac-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Riscontri_reali" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Riscontri_reali"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Riscontri reali</span> </div> </a> <button aria-controls="toc-Riscontri_reali-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Riscontri reali</span> </button> <ul id="toc-Riscontri_reali-sublist" class="vector-toc-list"> <li id="toc-Vantaggi_del_PPA" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Vantaggi_del_PPA"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Vantaggi del PPA</span> </div> </a> <ul id="toc-Vantaggi_del_PPA-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Svantaggi_del_PPA" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Svantaggi_del_PPA"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Svantaggi del PPA</span> </div> </a> <ul id="toc-Svantaggi_del_PPA-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliografia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliografia"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Bibliografia</span> </div> </a> <ul id="toc-Bibliografia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Mostra/Nascondi l'indice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Mostra/Nascondi l'indice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Parità di potere d'acquisto</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vai a una voce in un'altra lingua. Disponibile in 90 lingue" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-90" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">90 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Koopkragpariteit" title="Koopkragpariteit - afrikaans" lang="af" hreflang="af" data-title="Koopkragpariteit" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D8%B9%D8%A7%D8%AF%D9%84_%D8%A7%D9%84%D9%82%D8%AF%D8%B1%D8%A9_%D8%A7%D9%84%D8%B4%D8%B1%D8%A7%D8%A6%D9%8A%D8%A9" title="تعادل القدرة الشرائية - arabo" lang="ar" hreflang="ar" data-title="تعادل القدرة الشرائية" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Parid%C3%A1_de_poder_adquisitivu" title="Paridá de poder adquisitivu - asturiano" lang="ast" hreflang="ast" data-title="Paridá de poder adquisitivu" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Al%C4%B1c%C4%B1l%C4%B1q_qabiliyy%C9%99ti_pariteti" title="Alıcılıq qabiliyyəti pariteti - azerbaigiano" lang="az" hreflang="az" data-title="Alıcılıq qabiliyyəti pariteti" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaigiano" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D2%BA%D0%B0%D1%82%D1%8B%D0%BF_%D0%B0%D0%BB%D1%8B%D1%83_%D0%BC%D3%A9%D0%BC%D0%BA%D0%B8%D0%BD%D0%BB%D0%B5%D0%B3%D0%B5_%D0%BF%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82%D1%8B" title="Һатып алыу мөмкинлеге паритеты - baschiro" lang="ba" hreflang="ba" data-title="Һатып алыу мөмкинлеге паритеты" data-language-autonym="Башҡортса" data-language-local-name="baschiro" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9F%D0%B0%D1%80%D1%8B%D1%82%D1%8D%D1%82_%D0%BF%D0%B0%D0%BA%D1%83%D0%BF%D0%BD%D1%96%D1%86%D0%BA%D0%B0%D0%B9_%D0%B7%D0%B4%D0%BE%D0%BB%D1%8C%D0%BD%D0%B0%D1%81%D1%86%D1%96" title="Парытэт пакупніцкай здольнасці - bielorusso" lang="be" hreflang="be" data-title="Парытэт пакупніцкай здольнасці" data-language-autonym="Беларуская" data-language-local-name="bielorusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9F%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82_%D0%BD%D0%B0_%D0%BF%D0%BE%D0%BA%D1%83%D0%BF%D0%B0%D1%82%D0%B5%D0%BB%D0%BD%D0%B0%D1%82%D0%B0_%D1%81%D0%BF%D0%BE%D1%81%D0%BE%D0%B1%D0%BD%D0%BE%D1%81%D1%82" title="Паритет на покупателната способност - bulgaro" lang="bg" hreflang="bg" data-title="Паритет на покупателната способност" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%AA%E0%A4%B0%E0%A4%9A%E0%A5%87%E0%A4%9C%E0%A4%BF%E0%A4%82%E0%A4%97_%E0%A4%AA%E0%A4%BE%E0%A4%B5%E0%A4%B0_%E0%A4%AA%E0%A5%88%E0%A4%B0%E0%A4%BF%E0%A4%9F%E0%A5%80" title="परचेजिंग पावर पैरिटी - Bhojpuri" lang="bh" hreflang="bh" data-title="परचेजिंग पावर पैरिटी" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%95%E0%A7%8D%E0%A6%B0%E0%A6%AF%E0%A6%BC%E0%A6%95%E0%A7%8D%E0%A6%B7%E0%A6%AE%E0%A6%A4%E0%A6%BE_%E0%A6%B8%E0%A6%AE%E0%A6%A4%E0%A6%BE" title="ক্রয়ক্ষমতা সমতা - bengalese" lang="bn" hreflang="bn" data-title="ক্রয়ক্ষমতা সমতা" data-language-autonym="বাংলা" data-language-local-name="bengalese" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Paritet_kupovne_mo%C4%87i" title="Paritet kupovne moći - bosniaco" lang="bs" hreflang="bs" data-title="Paritet kupovne moći" data-language-autonym="Bosanski" data-language-local-name="bosniaco" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-bxr mw-list-item"><a href="https://bxr.wikipedia.org/wiki/%D0%A5%D1%83%D0%B4%D0%B0%D0%BB%D0%B4%D0%B0%D0%B6%D0%B0_%D0%B0%D0%B1%D0%B0%D1%85%D0%B0_%D1%88%D0%B0%D0%B4%D0%B0%D0%B1%D0%B0%D1%80%D0%B8%D0%B8%D0%BD_%D0%BF%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82" title="Худалдажа абаха шадабариин паритет - Russia Buriat" lang="bxr" hreflang="bxr" data-title="Худалдажа абаха шадабариин паритет" data-language-autonym="Буряад" data-language-local-name="Russia Buriat" class="interlanguage-link-target"><span>Буряад</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Paritat_de_poder_adquisitiu" title="Paritat de poder adquisitiu - catalano" lang="ca" hreflang="ca" data-title="Paritat de poder adquisitiu" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Parita_kupn%C3%AD_s%C3%ADly" title="Parita kupní síly - ceco" lang="cs" hreflang="cs" data-title="Parita kupní síly" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Paredd_gallu_prynu" title="Paredd gallu prynu - gallese" lang="cy" hreflang="cy" data-title="Paredd gallu prynu" data-language-autonym="Cymraeg" data-language-local-name="gallese" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/K%C3%B8bekraftsparitet" title="Købekraftsparitet - danese" lang="da" hreflang="da" data-title="Købekraftsparitet" data-language-autonym="Dansk" data-language-local-name="danese" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Kaufkraftparit%C3%A4t" title="Kaufkraftparität - tedesco" lang="de" hreflang="de" data-title="Kaufkraftparität" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Purchasing_power_parity" title="Purchasing power parity - inglese" lang="en" hreflang="en" data-title="Purchasing power parity" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/A%C4%89etpova_egaleco" title="Aĉetpova egaleco - esperanto" lang="eo" hreflang="eo" data-title="Aĉetpova egaleco" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Paridad_de_poder_adquisitivo" title="Paridad de poder adquisitivo - spagnolo" lang="es" hreflang="es" data-title="Paridad de poder adquisitivo" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Ostuj%C3%B5u_pariteet" title="Ostujõu pariteet - estone" lang="et" hreflang="et" data-title="Ostujõu pariteet" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Erosahalmenaren_parekotasun" title="Erosahalmenaren parekotasun - basco" lang="eu" hreflang="eu" data-title="Erosahalmenaren parekotasun" data-language-autonym="Euskara" data-language-local-name="basco" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A8%D8%B1%D8%A7%D8%A8%D8%B1%DB%8C_%D9%82%D8%AF%D8%B1%D8%AA_%D8%AE%D8%B1%DB%8C%D8%AF" title="برابری قدرت خرید - persiano" lang="fa" hreflang="fa" data-title="برابری قدرت خرید" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Ostovoimapariteetti" title="Ostovoimapariteetti - finlandese" lang="fi" hreflang="fi" data-title="Ostovoimapariteetti" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Parit%C3%A9_de_pouvoir_d%27achat" title="Parité de pouvoir d'achat - francese" lang="fr" hreflang="fr" data-title="Parité de pouvoir d'achat" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/KKP" title="KKP - frisone settentrionale" lang="frr" hreflang="frr" data-title="KKP" data-language-autonym="Nordfriisk" data-language-local-name="frisone settentrionale" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Paireacht_cumhachta_ceannaigh" title="Paireacht cumhachta ceannaigh - irlandese" lang="ga" hreflang="ga" data-title="Paireacht cumhachta ceannaigh" data-language-autonym="Gaeilge" data-language-local-name="irlandese" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Co-ionnannachd_comais-cheannachd" title="Co-ionnannachd comais-cheannachd - gaelico scozzese" lang="gd" hreflang="gd" data-title="Co-ionnannachd comais-cheannachd" data-language-autonym="Gàidhlig" data-language-local-name="gaelico scozzese" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Paridade_de_poder_adquisitivo" title="Paridade de poder adquisitivo - galiziano" lang="gl" hreflang="gl" data-title="Paridade de poder adquisitivo" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gn mw-list-item"><a href="https://gn.wikipedia.org/wiki/Jejoguakuaa_%C3%B1embojojaha" title="Jejoguakuaa ñembojojaha - guaraní" lang="gn" hreflang="gn" data-title="Jejoguakuaa ñembojojaha" data-language-autonym="Avañe'ẽ" data-language-local-name="guaraní" class="interlanguage-link-target"><span>Avañe'ẽ</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A9%D7%95%D7%95%D7%99_%D7%9B%D7%95%D7%97_%D7%94%D7%A7%D7%A0%D7%99%D7%99%D7%94" title="שווי כוח הקנייה - ebraico" lang="he" hreflang="he" data-title="שווי כוח הקנייה" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%AF-%E0%A4%B6%E0%A4%95%E0%A5%8D%E0%A4%A4%E0%A4%BF_%E0%A4%B8%E0%A4%AE%E0%A4%A4%E0%A4%BE" title="क्रय-शक्ति समता - hindi" lang="hi" hreflang="hi" data-title="क्रय-शक्ति समता" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Paritet_kupovne_mo%C4%87i" title="Paritet kupovne moći - croato" lang="hr" hreflang="hr" data-title="Paritet kupovne moći" data-language-autonym="Hrvatski" data-language-local-name="croato" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/V%C3%A1s%C3%A1rl%C3%B3er%C5%91-parit%C3%A1s" title="Vásárlóerő-paritás - ungherese" lang="hu" hreflang="hu" data-title="Vásárlóerő-paritás" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B3%D5%B6%D5%B8%D5%B2%D5%B8%D6%82%D5%B6%D5%A1%D5%AF%D5%B8%D6%82%D5%A9%D5%B5%D5%A1%D5%B6_%D5%B0%D5%A1%D5%B4%D5%A1%D6%80%D5%AA%D5%A5%D6%84%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6" title="Գնողունակության համարժեքություն - armeno" lang="hy" hreflang="hy" data-title="Գնողունակության համարժեքություն" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Paritate_de_poter_acquisitive" title="Paritate de poter acquisitive - interlingua" lang="ia" hreflang="ia" data-title="Paritate de poter acquisitive" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Keseimbangan_kemampuan_berbelanja" title="Keseimbangan kemampuan berbelanja - indonesiano" lang="id" hreflang="id" data-title="Keseimbangan kemampuan berbelanja" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/Pagpadaan_ti_kapigsa_ti_panag-gatang" title="Pagpadaan ti kapigsa ti panag-gatang - ilocano" lang="ilo" hreflang="ilo" data-title="Pagpadaan ti kapigsa ti panag-gatang" data-language-autonym="Ilokano" data-language-local-name="ilocano" class="interlanguage-link-target"><span>Ilokano</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Kaupm%C3%A1ttarj%C3%B6fnu%C3%B0ur" title="Kaupmáttarjöfnuður - islandese" lang="is" hreflang="is" data-title="Kaupmáttarjöfnuður" data-language-autonym="Íslenska" data-language-local-name="islandese" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E8%B3%BC%E8%B2%B7%E5%8A%9B%E5%B9%B3%E4%BE%A1%E8%AA%AC" title="購買力平価説 - giapponese" lang="ja" hreflang="ja" data-title="購買力平価説" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Paritas_daya_tuku" title="Paritas daya tuku - giavanese" lang="jv" hreflang="jv" data-title="Paritas daya tuku" data-language-autonym="Jawa" data-language-local-name="giavanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9B%E1%83%A1%E1%83%A7%E1%83%98%E1%83%93%E1%83%95%E1%83%94%E1%83%9A%E1%83%9D%E1%83%91%E1%83%98%E1%83%97%E1%83%98_%E1%83%A3%E1%83%9C%E1%83%90%E1%83%A0%E1%83%98%E1%83%A1_%E1%83%9E%E1%83%90%E1%83%A0%E1%83%98%E1%83%A2%E1%83%94%E1%83%A2%E1%83%98" title="მსყიდველობითი უნარის პარიტეტი - georgiano" lang="ka" hreflang="ka" data-title="მსყიდველობითი უნარის პარიტეტი" data-language-autonym="ქართული" data-language-local-name="georgiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%90%D0%BB%D0%B0%D1%80%D0%BC%D0%B0%D0%BD_%D2%9B%D0%B0%D0%B1%D1%96%D0%BB%D0%B5%D1%82_%D1%82%D0%B5%D0%BF%D0%B5%D1%82%D0%B5%D0%BD%D0%B4%D1%96%D0%B3%D1%96" title="Аларман қабілет тепетендігі - kazako" lang="kk" hreflang="kk" data-title="Аларман қабілет тепетендігі" data-language-autonym="Қазақша" data-language-local-name="kazako" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B5%AC%EB%A7%A4%EB%A0%A5_%ED%8F%89%EA%B0%80" title="구매력 평가 - coreano" lang="ko" hreflang="ko" data-title="구매력 평가" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Par%C3%AEteya_H%C3%AAza_Kir%C3%AEn%C3%AA" title="Parîteya Hêza Kirînê - curdo" lang="ku" hreflang="ku" data-title="Parîteya Hêza Kirînê" data-language-autonym="Kurdî" data-language-local-name="curdo" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Par_acquirendi_potestas" title="Par acquirendi potestas - latino" lang="la" hreflang="la" data-title="Par acquirendi potestas" data-language-autonym="Latina" data-language-local-name="latino" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lld mw-list-item"><a href="https://lld.wikipedia.org/wiki/Valivanza_dl_pud%C3%ABi_de_compra" title="Valivanza dl pudëi de compra - Ladin" lang="lld" hreflang="lld" data-title="Valivanza dl pudëi de compra" data-language-autonym="Ladin" data-language-local-name="Ladin" class="interlanguage-link-target"><span>Ladin</span></a></li><li class="interlanguage-link interwiki-lo mw-list-item"><a href="https://lo.wikipedia.org/wiki/%E0%BA%81%E0%BA%B3%E0%BA%A5%E0%BA%B1%E0%BA%87%E0%BA%8A%E0%BA%B7%E0%BB%89%E0%BA%97%E0%BA%BD%E0%BA%9A%E0%BA%96%E0%BA%B2%E0%BA%99" title="ກຳລັງຊື້ທຽບຖານ - lao" lang="lo" hreflang="lo" data-title="ກຳລັງຊື້ທຽບຖານ" data-language-autonym="ລາວ" data-language-local-name="lao" class="interlanguage-link-target"><span>ລາວ</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Perkamosios_galios_paritetas" title="Perkamosios galios paritetas - lituano" lang="lt" hreflang="lt" data-title="Perkamosios galios paritetas" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Pirktsp%C4%93jas_parit%C4%81te" title="Pirktspējas paritāte - lettone" lang="lv" hreflang="lv" data-title="Pirktspējas paritāte" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9F%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82_%D0%BD%D0%B0_%D0%BA%D1%83%D0%BF%D0%BE%D0%B2%D0%BD%D0%B0_%D0%BC%D0%BE%D1%9C" title="Паритет на куповна моќ - macedone" lang="mk" hreflang="mk" data-title="Паритет на куповна моќ" data-language-autonym="Македонски" data-language-local-name="macedone" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%AF%E0%A4%B6%E0%A4%95%E0%A5%8D%E0%A4%A4%E0%A5%80%E0%A4%9A%E0%A5%80_%E0%A4%B8%E0%A4%AE%E0%A4%BE%E0%A4%A8%E0%A4%A4%E0%A4%BE" title="क्रयशक्तीची समानता - marathi" lang="mr" hreflang="mr" data-title="क्रयशक्तीची समानता" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Pariti_kuasa_beli" title="Pariti kuasa beli - malese" lang="ms" hreflang="ms" data-title="Pariti kuasa beli" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%9D%E1%80%9A%E1%80%BA%E1%80%9A%E1%80%B0%E1%80%94%E1%80%AD%E1%80%AF%E1%80%84%E1%80%BA%E1%80%85%E1%80%BD%E1%80%99%E1%80%BA%E1%80%B8%E1%80%A1%E1%80%AC%E1%80%B8_%E1%80%80%E1%80%BD%E1%80%AC%E1%80%81%E1%80%BC%E1%80%AC%E1%80%B8%E1%80%99%E1%80%BE%E1%80%AF%E1%80%94%E1%80%BE%E1%80%AF%E1%80%94%E1%80%BA%E1%80%B8" title="ဝယ်ယူနိုင်စွမ်းအား ကွာခြားမှုနှုန်း - birmano" lang="my" hreflang="my" data-title="ဝယ်ယူနိုင်စွမ်းအား ကွာခြားမှုနှုန်း" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmano" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%AF_%E0%A4%B6%E0%A4%95%E0%A5%8D%E0%A4%A4%E0%A4%BF_%E0%A4%B8%E0%A4%AE%E0%A4%A4%E0%A4%BE" title="क्रय शक्ति समता - nepalese" lang="ne" hreflang="ne" data-title="क्रय शक्ति समता" data-language-autonym="नेपाली" data-language-local-name="nepalese" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Koopkrachtpariteit" title="Koopkrachtpariteit - olandese" lang="nl" hreflang="nl" data-title="Koopkrachtpariteit" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Kj%C3%B8pekraftsparitet" title="Kjøpekraftsparitet - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Kjøpekraftsparitet" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegese nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Kj%C3%B8pekraftsparitet" title="Kjøpekraftsparitet - norvegese bokmål" lang="nb" hreflang="nb" data-title="Kjøpekraftsparitet" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-os mw-list-item"><a href="https://os.wikipedia.org/wiki/%C3%86%D0%BB%D1%85%C3%A6%D0%BD%C3%A6%D0%BD_%D0%A5%D1%8A%D0%BE%D0%BC_%D0%9F%C3%A6%D1%80%D0%B8%D1%82%D0%B5%D1%82" title="Æлхæнæн Хъом Пæритет - ossetico" lang="os" hreflang="os" data-title="Æлхæнæн Хъом Пæритет" data-language-autonym="Ирон" data-language-local-name="ossetico" class="interlanguage-link-target"><span>Ирон</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%96%E0%A8%B0%E0%A9%80%E0%A8%A6_%E0%A8%B8%E0%A8%BC%E0%A8%95%E0%A8%A4%E0%A9%80_%E0%A8%B8%E0%A8%AE%E0%A8%BE%E0%A8%A8%E0%A8%A4%E0%A8%BE" title="ਖਰੀਦ ਸ਼ਕਤੀ ਸਮਾਨਤਾ - punjabi" lang="pa" hreflang="pa" data-title="ਖਰੀਦ ਸ਼ਕਤੀ ਸਮਾਨਤਾ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Parytet_si%C5%82y_nabywczej" title="Parytet siły nabywczej - polacco" lang="pl" hreflang="pl" data-title="Parytet siły nabywczej" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D9%85%D8%B3%D8%A7%D9%88%DB%8C_%D9%82%D9%88%D8%AA_%D8%AE%D8%B1%DB%8C%D8%AF" title="مساوی قوت خرید - Western Punjabi" lang="pnb" hreflang="pnb" data-title="مساوی قوت خرید" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Paridade_do_poder_de_compra" title="Paridade do poder de compra - portoghese" lang="pt" hreflang="pt" data-title="Paridade do poder de compra" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Paritatea_puterii_de_cump%C4%83rare" title="Paritatea puterii de cumpărare - rumeno" lang="ro" hreflang="ro" data-title="Paritatea puterii de cumpărare" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9F%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82_%D0%BF%D0%BE%D0%BA%D1%83%D0%BF%D0%B0%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D0%B9_%D1%81%D0%BF%D0%BE%D1%81%D0%BE%D0%B1%D0%BD%D0%BE%D1%81%D1%82%D0%B8" title="Паритет покупательной способности - russo" lang="ru" hreflang="ru" data-title="Паритет покупательной способности" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-rue mw-list-item"><a href="https://rue.wikipedia.org/wiki/%D0%9F%D0%B0%D1%80%D0%B8%D1%82%D0%B0_%D0%BD%D0%B0%D0%BA%D1%83%D0%BF%D0%BD%D0%BE%D0%B9_%D1%81%D0%B8%D0%BB%D1%8B" title="Парита накупной силы - ruteno" lang="rue" hreflang="rue" data-title="Парита накупной силы" data-language-autonym="Русиньскый" data-language-local-name="ruteno" class="interlanguage-link-target"><span>Русиньскый</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%90%D1%82%D1%8B%D1%8B%D0%BB%D0%B0h%D0%B0%D1%80_%D0%BA%D1%8B%D0%B0%D1%85_%D0%BF%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82%D0%B0" title="Атыылаhар кыах паритета - sacha" lang="sah" hreflang="sah" data-title="Атыылаhар кыах паритета" data-language-autonym="Саха тыла" data-language-local-name="sacha" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%AE%D8%B1%D9%8A%D8%AF%D8%A7%D8%B1%D9%8A_%D8%B3%DA%AF%D9%87%D9%87_%D8%A8%D8%B1%D8%A7%D8%A8%D8%B1%D9%8A" title="خريداري سگهه برابري - sindhi" lang="sd" hreflang="sd" data-title="خريداري سگهه برابري" data-language-autonym="سنڌي" data-language-local-name="sindhi" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Paritet_kupovne_mo%C4%87i" title="Paritet kupovne moći - serbo-croato" lang="sh" hreflang="sh" data-title="Paritet kupovne moći" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croato" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-shi mw-list-item"><a href="https://shi.wikipedia.org/wiki/Taksli_n_t%E1%BA%93%E1%B8%8Dart_n_tis%C9%A3i" title="Taksli n tẓḍart n tisɣi - tashelhit" lang="shi" hreflang="shi" data-title="Taksli n tẓḍart n tisɣi" data-language-autonym="Taclḥit" data-language-local-name="tashelhit" class="interlanguage-link-target"><span>Taclḥit</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%9A%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B6%BA_%E0%B7%81%E0%B6%9A%E0%B7%8A%E0%B6%AD%E0%B7%92_%E0%B7%83%E0%B7%8F%E0%B6%B8%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B6%BA" title="ක්‍රය ශක්ති සාම්‍යය - singalese" lang="si" hreflang="si" data-title="ක්‍රය ශක්ති සාම්‍යය" data-language-autonym="සිංහල" data-language-local-name="singalese" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Purchasing_power_parity" title="Purchasing power parity - Simple English" lang="en-simple" hreflang="en-simple" data-title="Purchasing power parity" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Parita_k%C3%BApnej_sily_(teoretick%C3%BD_v%C3%BDmenn%C3%BD_kurz)" title="Parita kúpnej sily (teoretický výmenný kurz) - slovacco" lang="sk" hreflang="sk" data-title="Parita kúpnej sily (teoretický výmenný kurz)" data-language-autonym="Slovenčina" data-language-local-name="slovacco" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9F%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82_%D0%BA%D1%83%D0%BF%D0%BE%D0%B2%D0%BD%D0%B5_%D0%BC%D0%BE%D1%9B%D0%B8" title="Паритет куповне моћи - serbo" lang="sr" hreflang="sr" data-title="Паритет куповне моћи" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Kasaimbangan_Kamampuh_Balanja" title="Kasaimbangan Kamampuh Balanja - sundanese" lang="su" hreflang="su" data-title="Kasaimbangan Kamampuh Balanja" data-language-autonym="Sunda" data-language-local-name="sundanese" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/K%C3%B6pkraftsparitet" title="Köpkraftsparitet - svedese" lang="sv" hreflang="sv" data-title="Köpkraftsparitet" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AF%8A%E0%AE%B3%E0%AF%8D%E0%AE%B5%E0%AE%A9%E0%AE%B5%E0%AF%81_%E0%AE%86%E0%AE%B1%E0%AF%8D%E0%AE%B1%E0%AE%B2%E0%AF%8D_%E0%AE%9A%E0%AE%AE%E0%AE%A8%E0%AE%BF%E0%AE%B2%E0%AF%88" title="கொள்வனவு ஆற்றல் சமநிலை - tamil" lang="ta" hreflang="ta" data-title="கொள்வனவு ஆற்றல் சமநிலை" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A0%E0%B8%B2%E0%B8%A7%E0%B8%B0%E0%B9%80%E0%B8%AA%E0%B8%A1%E0%B8%AD%E0%B8%A0%E0%B8%B2%E0%B8%84%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B8%AD%E0%B8%B3%E0%B8%99%E0%B8%B2%E0%B8%88%E0%B8%8B%E0%B8%B7%E0%B9%89%E0%B8%AD" title="ภาวะเสมอภาคของอำนาจซื้อ - thailandese" lang="th" hreflang="th" data-title="ภาวะเสมอภาคของอำนาจซื้อ" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Kapantayan_ng_lakas_ng_pagbili" title="Kapantayan ng lakas ng pagbili - tagalog" lang="tl" hreflang="tl" data-title="Kapantayan ng lakas ng pagbili" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Sat%C4%B1n_alma_g%C3%BCc%C3%BC_paritesi" title="Satın alma gücü paritesi - turco" lang="tr" hreflang="tr" data-title="Satın alma gücü paritesi" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%A1%D0%B0%D1%82%D1%8B%D0%BF_%D0%B0%D0%BB%D1%83_%D0%BC%D3%A9%D0%BC%D0%BA%D0%B8%D0%BD%D1%87%D0%B5%D0%BB%D0%B5%D0%B3%D0%B5_%D0%BF%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82%D1%8B" title="Сатып алу мөмкинчелеге паритеты - tataro" lang="tt" hreflang="tt" data-title="Сатып алу мөмкинчелеге паритеты" data-language-autonym="Татарча / tatarça" data-language-local-name="tataro" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9F%D0%B0%D1%80%D0%B8%D1%82%D0%B5%D1%82_%D0%BA%D1%83%D0%BF%D1%96%D0%B2%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D1%97_%D1%81%D0%BF%D1%80%D0%BE%D0%BC%D0%BE%D0%B6%D0%BD%D0%BE%D1%81%D1%82%D1%96" title="Паритет купівельної спроможності - ucraino" lang="uk" hreflang="uk" data-title="Паритет купівельної спроможності" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D9%85%D8%B3%D8%A7%D9%88%DB%8C_%D9%82%D9%88%D8%AA_%D8%AE%D8%B1%DB%8C%D8%AF" title="مساوی قوت خرید - urdu" lang="ur" hreflang="ur" data-title="مساوی قوت خرید" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Xarid_qobiliyati_pariteti" title="Xarid qobiliyati pariteti - uzbeco" lang="uz" hreflang="uz" data-title="Xarid qobiliyati pariteti" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeco" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/S%E1%BB%A9c_mua_t%C6%B0%C6%A1ng_%C4%91%C6%B0%C6%A1ng" title="Sức mua tương đương - vietnamita" lang="vi" hreflang="vi" data-title="Sức mua tương đương" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Pagsukolsukol_han_kakusog_han_pamalit" title="Pagsukolsukol han kakusog han pamalit - waray" lang="war" hreflang="war" data-title="Pagsukolsukol han kakusog han pamalit" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E8%B4%AD%E4%B9%B0%E5%8A%9B%E5%B9%B3%E4%BB%B7" title="购买力平价 - wu" lang="wuu" hreflang="wuu" data-title="购买力平价" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%B8%E1%83%98%E1%83%93%E1%83%98%E1%83%A0%E1%83%98%E1%83%A8_%E1%83%A3%E1%83%9C%E1%83%90%E1%83%A0%E1%83%98%E1%83%A8_%E1%83%9E%E1%83%90%E1%83%A0%E1%83%98%E1%83%A2%E1%83%94%E1%83%A2%E1%83%98" title="ჸიდირიშ უნარიშ პარიტეტი - mengrelio" lang="xmf" hreflang="xmf" data-title="ჸიდირიშ უნარიშ პარიტეტი" data-language-autonym="მარგალური" data-language-local-name="mengrelio" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-zgh mw-list-item"><a href="https://zgh.wikipedia.org/wiki/%E2%B5%9C%E2%B4%B0%E2%B4%BD%E2%B5%99%E2%B5%8D%E2%B5%89_%E2%B5%8F_%E2%B5%9C%E2%B5%A5%E2%B4%B9%E2%B4%B0%E2%B5%94%E2%B5%9C_%E2%B5%8F_%E2%B5%9C%E2%B5%89%E2%B5%99%E2%B5%96%E2%B5%89" title="ⵜⴰⴽⵙⵍⵉ ⵏ ⵜⵥⴹⴰⵔⵜ ⵏ ⵜⵉⵙⵖⵉ - tamazight del Marocco standard" lang="zgh" hreflang="zgh" data-title="ⵜⴰⴽⵙⵍⵉ ⵏ ⵜⵥⴹⴰⵔⵜ ⵏ ⵜⵉⵙⵖⵉ" data-language-autonym="ⵜⴰⵎⴰⵣⵉⵖⵜ ⵜⴰⵏⴰⵡⴰⵢⵜ" data-language-local-name="tamazight del Marocco standard" class="interlanguage-link-target"><span>ⵜⴰⵎⴰⵣⵉⵖⵜ ⵜⴰⵏⴰⵡⴰⵢⵜ</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E8%B4%AD%E4%B9%B0%E5%8A%9B%E5%B9%B3%E4%BB%B7" title="购买力平价 - cinese" lang="zh" hreflang="zh" data-title="购买力平价" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E8%B3%BC%E8%B2%B7%E5%8A%9B%E5%B9%B3%E5%83%B9" title="購買力平價 - cantonese" lang="yue" hreflang="yue" data-title="購買力平價" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q82135#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" 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.avviso .mbox-text-full-div>div{font-size:90%}.mw-parser-output .avviso .mbox-image{flex-basis:52px;flex-grow:0;flex-shrink:0}.mw-parser-output .avviso .mbox-text-full-div .hide-when-compact{display:block}</style><div style="" class="ambox metadata plainlinks avviso avviso-contenuto"> <div class="avviso-immagine mbox-image noprint"><span typeof="mw:File"><a href="/wiki/File:Emblem-important.svg" class="mw-file-description" title="Voce da controllare"><img alt="Voce da controllare" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Emblem-important.svg/40px-Emblem-important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Emblem-important.svg/60px-Emblem-important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Emblem-important.svg/80px-Emblem-important.svg.png 2x" data-file-width="48" data-file-height="48" /></a></span></div> <div class="avviso-testo mbox-text"> <div class="mbox-text-div"><b>Questa voce o sezione  sull'argomento economia è ritenuta <a href="/wiki/Aiuto:Voci_da_controllare" title="Aiuto:Voci da controllare">da controllare</a></b>. <div class="hide-when-compact"><b>Motivo</b>: <i>imprecisioni varie</i> <div class="noprint"><hr />Partecipa alla <a href="/wiki/Discussione:Parit%C3%A0_di_potere_d%27acquisto" title="Discussione:Parità di potere d'acquisto">discussione</a> e/o <a class="external text" href="https://it.wikipedia.org/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit">correggi</a> la voce. Segui i suggerimenti del <a href="/wiki/Progetto:Economia" title="Progetto:Economia">progetto di riferimento</a>.</div> </div> </div> </div> </div> <p>La <b>parità di <a href="/wiki/Potere_d%27acquisto" title="Potere d'acquisto">potere d'acquisto</a></b> (<b>PPA</b>; in <a href="/wiki/Lingua_inglese" title="Lingua inglese">inglese</a>: <i>purchasing power parity</i> - <b>PPP</b>) è un <a href="/wiki/Numero_indice" title="Numero indice">indice</a> che consente di confrontare i livelli dei prezzi tra località diverse, appartenenti ad una stessa area valutaria o ad aree valutarie diverse. In quest'ultimo caso, l'indice introduce una relazione tra i <a href="/wiki/Prezzo" title="Prezzo">prezzi</a> e il <a href="/wiki/Tasso_di_cambio" title="Tasso di cambio">tasso di cambio</a><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. L'indice va contestualizzato all'interno della teoria economica della <a href="/wiki/Economia_neoclassica" title="Economia neoclassica">scuola neoclassica</a> che sostiene che il tasso di cambio tra due paesi dovrebbe essere uguale al rapporto tra i rispettivi <a href="/wiki/Potere_d%27acquisto" title="Potere d'acquisto">poteri di acquisto</a>. </p><p>La <a href="/wiki/Teoria" title="Teoria">teoria</a> ha una versione assoluta e una versione relativa. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Versione_assoluta_della_PPA">Versione assoluta della PPA</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=1" title="Modifica la sezione Versione assoluta della PPA" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=1" title="Edit section's source code: Versione assoluta della PPA"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Per la <i>versione assoluta</i> della PPA, i livelli generali dei prezzi di due paesi non possono differire quando vengono raffrontati dopo averli convertiti nella medesima <a href="/wiki/Valuta" title="Valuta">valuta</a>. Vale, cioè, la seguente relazione: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ EP_{1}=P_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi>E</mi> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ EP_{1}=P_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/96128eff6aa7968e499d284d009b7ea3f1507474" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:10.548ex; height:2.509ex;" alt="{\displaystyle \ EP_{1}=P_{2}}"></span></dd></dl> <p>Dove <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ P_{1}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ P_{1}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/121503eec0535f4dbfc0830645dff2721891b1a9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.127ex; height:2.509ex;" alt="{\displaystyle \ P_{1}}"></span> è il livello generale dei prezzi per il <i>paese 1</i>, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ P_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ P_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1e442d207e830dceaa6700e505d03e97ea77f6ed" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.127ex; height:2.509ex;" alt="{\displaystyle \ P_{2}}"></span> è il livello generale dei prezzi per il <i>paese 2</i> e <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ E}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi>E</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ E}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/01358ea1a9419bfbfbaab2467c6db81c1a6b1fb0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.356ex; height:2.176ex;" alt="{\displaystyle \ E}"></span> è il tasso di cambio tra la <a href="/wiki/Moneta" title="Moneta">moneta</a> del <i>paese 2</i> e la moneta del <i>paese 1</i>. </p> <div class="mw-heading mw-heading2"><h2 id="Versione_relativa_della_PPA">Versione relativa della PPA</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=2" title="Modifica la sezione Versione relativa della PPA" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=2" title="Edit section's source code: Versione relativa della PPA"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La <i>versione relativa</i> della PPA guarda al momento in cui i prezzi <i>variano</i> e quindi va presa in esame la seguente formula: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ \Delta \%(EP_{1})=\Delta \%P_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi mathvariant="normal">Δ</mi> <mi mathvariant="normal">%</mi> <mo stretchy="false">(</mo> <mi>E</mi> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo stretchy="false">)</mo> <mo>=</mo> <mi mathvariant="normal">Δ</mi> <mi mathvariant="normal">%</mi> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ \Delta \%(EP_{1})=\Delta \%P_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/925a79f8ec04402ee4e67daa50ce56be3aa26320" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:20.101ex; height:2.843ex;" alt="{\displaystyle \ \Delta \%(EP_{1})=\Delta \%P_{2}}"></span></dd></dl> <p>La variazione percentuale del livello dei prezzi del <i>paese 1</i> e quella del livello dei prezzi del <i>paese 2</i>, se raffrontate una volta che i prezzi siano espressi in termini di una stessa valuta, devono essere uguali. </p><p>La formula in questione può essere così trasformata: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ \Delta \%E+\Delta \%P_{1}=\Delta \%P_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi mathvariant="normal">Δ</mi> <mi mathvariant="normal">%</mi> <mi>E</mi> <mo>+</mo> <mi mathvariant="normal">Δ</mi> <mi mathvariant="normal">%</mi> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>=</mo> <mi mathvariant="normal">Δ</mi> <mi mathvariant="normal">%</mi> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ \Delta \%E+\Delta \%P_{1}=\Delta \%P_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c1f5b430e92ecd4b5c60ee8722a7ea695e5b582b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:25.003ex; height:2.676ex;" alt="{\displaystyle \ \Delta \%E+\Delta \%P_{1}=\Delta \%P_{2}}"></span></dd></dl> <p>È possibile scrivere l'equazione in termini di <a href="/wiki/Logaritmo" title="Logaritmo">logaritmi</a>. Infatti la variazione assoluta del <a href="/wiki/Logaritmo#Basi_più_comuni" title="Logaritmo">logaritmo naturale</a> di una variabile è una buona <a href="/wiki/Approssimazione" title="Approssimazione">approssimazione</a> della variazione percentuale della stessa variabile. <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ e}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi>e</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ e}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ba8139c9f3055e69c6208f178b5ac7931e9083e8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.664ex; height:1.676ex;" alt="{\displaystyle \ e}"></span>,<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ p_{1}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ p_{1}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e9a3558438d5bca2174bb2b8a64ababad1c62c14" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.804ex; height:2.009ex;" alt="{\displaystyle \ p_{1}}"></span> e <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ p_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ p_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d20127227cf7afb930298019389fe9d4e989cec2" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.804ex; height:2.009ex;" alt="{\displaystyle \ p_{2}}"></span> sono i logaritmi naturali di <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ E}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi>E</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ E}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/01358ea1a9419bfbfbaab2467c6db81c1a6b1fb0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.356ex; height:2.176ex;" alt="{\displaystyle \ E}"></span>, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ P_{1}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ P_{1}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/121503eec0535f4dbfc0830645dff2721891b1a9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.127ex; height:2.509ex;" alt="{\displaystyle \ P_{1}}"></span> e <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ P_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ P_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1e442d207e830dceaa6700e505d03e97ea77f6ed" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.127ex; height:2.509ex;" alt="{\displaystyle \ P_{2}}"></span>. </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ \Delta e+\Delta p_{1}=\Delta p_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi mathvariant="normal">Δ</mi> <mi>e</mi> <mo>+</mo> <mi mathvariant="normal">Δ</mi> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>=</mo> <mi mathvariant="normal">Δ</mi> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ \Delta e+\Delta p_{1}=\Delta p_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2797d96540562041cf4f7bd03e50226f58dafcb5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:17.858ex; height:2.509ex;" alt="{\displaystyle \ \Delta e+\Delta p_{1}=\Delta p_{2}}"></span></dd></dl> <p>Poiché la variazione percentuale del livello generale dei prezzi non è altro che il livello di <a href="/wiki/Inflazione" title="Inflazione">inflazione</a>, è possibile trasformare nuovamente l'equazione. </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ \Delta e=\Pi _{2}-\Pi _{1}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi mathvariant="normal">Δ</mi> <mi>e</mi> <mo>=</mo> <msub> <mi mathvariant="normal">Π</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>−</mo> <msub> <mi mathvariant="normal">Π</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ \Delta e=\Pi _{2}-\Pi _{1}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2b0bf4a64bc6accf90c2fd8c07a60ffa1eceba18" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:15.134ex; height:2.509ex;" alt="{\displaystyle \ \Delta e=\Pi _{2}-\Pi _{1}}"></span></dd></dl> <p>Ciò significa che quando il tasso di inflazione del <i>paese 2</i> (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ \Pi _{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <msub> <mi mathvariant="normal">Π</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ \Pi _{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ac3abc99eff723e3db76f69064b26ff1283814cf" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.378ex; height:2.509ex;" alt="{\displaystyle \ \Pi _{2}}"></span>) aumenta (diminuisce) o il tasso di inflazione del <i>paese 1</i> (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ \Pi _{1}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <msub> <mi mathvariant="normal">Π</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ \Pi _{1}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/23802a8482a972e71bc04f1a6f0c23e402a7c2fc" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:3.378ex; height:2.509ex;" alt="{\displaystyle \ \Pi _{1}}"></span>) diminuisce (aumenta), il tasso di cambio <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ E}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi>E</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ E}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/01358ea1a9419bfbfbaab2467c6db81c1a6b1fb0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:2.356ex; height:2.176ex;" alt="{\displaystyle \ E}"></span> aumenta (diminuisce). Cioè, la moneta del <i>paese 1</i> si apprezza (si deprezza) rispetto a quella del <i>paese 2</i>. Questo perché nel caso di aumento dei prezzi nel <i>paese 2</i> gli operatori troveranno più convenienti i beni del <i>paese 1</i> e l'aumentata domanda della valuta di quest'ultimo paese ne provocherà un aumento del cambio rispetto alla valuta del paese nel quale i prezzi sono aumentati. </p> <div class="mw-heading mw-heading2"><h2 id="Monete_apprezzate_e_deprezzate">Monete apprezzate e deprezzate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=3" title="Modifica la sezione Monete apprezzate e deprezzate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=3" title="Edit section's source code: Monete apprezzate e deprezzate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>È ora possibile introdurre una semplice applicazione di questa teoria. Prima, però, è necessario sottolineare che la teoria in questione è da interpretare come una teoria <i>di lungo periodo</i>. </p> <div class="mw-heading mw-heading3"><h3 id="Il_tasso_di_cambio_reale">Il tasso di cambio reale</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=4" title="Modifica la sezione Il tasso di cambio reale" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=4" title="Edit section's source code: Il tasso di cambio reale"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'equazione della versione assoluta della teoria può essere scritta nel seguente modo: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ {\frac {EP_{1}}{P_{2}}}=1}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>E</mi> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mrow> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mfrac> </mrow> <mo>=</mo> <mn>1</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ {\frac {EP_{1}}{P_{2}}}=1}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/68843e60b97d2d9ee46574bde591c0726a243bd6" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:10ex; height:5.509ex;" alt="{\displaystyle \ {\frac {EP_{1}}{P_{2}}}=1}"></span></dd></dl> <p>Va notato che <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ {\frac {EP_{1}}{P_{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>E</mi> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mrow> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ {\frac {EP_{1}}{P_{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ee0cbd7b07559db51c976e2fc55676e1424501ad" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:5.739ex; height:5.509ex;" alt="{\displaystyle \ {\frac {EP_{1}}{P_{2}}}}"></span> non è altro che il tasso di cambio reale. Di conseguenza, per la versione assoluta della teoria, il tasso di cambio reale deve essere uguale a 1. La variazione percentuale del tasso di cambio reale, approssimato dai logaritmi, può essere scritta nel seguente modo: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ \Delta e+\Delta p_{1}-\Delta p_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi mathvariant="normal">Δ</mi> <mi>e</mi> <mo>+</mo> <mi mathvariant="normal">Δ</mi> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>−</mo> <mi mathvariant="normal">Δ</mi> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ \Delta e+\Delta p_{1}-\Delta p_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/dc351e0b901dca58ee34a2f1c12d0d535404df3c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:17.6ex; height:2.509ex;" alt="{\displaystyle \ \Delta e+\Delta p_{1}-\Delta p_{2}}"></span></dd></dl> <p>Poiché vale <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ \Delta e+\Delta p_{1}=\Delta p_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi mathvariant="normal">Δ</mi> <mi>e</mi> <mo>+</mo> <mi mathvariant="normal">Δ</mi> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>=</mo> <mi mathvariant="normal">Δ</mi> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ \Delta e+\Delta p_{1}=\Delta p_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2797d96540562041cf4f7bd03e50226f58dafcb5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:17.858ex; height:2.509ex;" alt="{\displaystyle \ \Delta e+\Delta p_{1}=\Delta p_{2}}"></span>, ne deriva che l'equazione precedente deve essere uguale a 0. Di conseguenza, la variazione del tasso di cambio reale deve essere pari a 0. </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ \Delta e+\Delta p_{1}-\Delta p_{2}=0}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mtext> </mtext> <mi mathvariant="normal">Δ</mi> <mi>e</mi> <mo>+</mo> <mi mathvariant="normal">Δ</mi> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>−</mo> <mi mathvariant="normal">Δ</mi> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>=</mo> <mn>0</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \ \Delta e+\Delta p_{1}-\Delta p_{2}=0}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f36d67527f2033f0e77b2597ae014f1a652b64f6" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:21.861ex; height:2.509ex;" alt="{\displaystyle \ \Delta e+\Delta p_{1}-\Delta p_{2}=0}"></span></dd></dl> <p>Il tasso di cambio reale, quindi, deve essere costante. È chiaro che questa condizione non è soddisfatta nel breve periodo (poiché il tasso di cambio reale fluttua quotidianamente), ma secondo alcuni studi il tasso di cambio reale, nel lungo periodo, tende a tornare verso il livello di equilibrio. </p> <div class="mw-heading mw-heading3"><h3 id="L'indice_Big_Mac"><span id="L.27indice_Big_Mac"></span>L'indice Big Mac</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=5" title="Modifica la sezione L'indice Big Mac" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=5" title="Edit section's source code: L'indice Big Mac"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>È possibile, a questo punto, stabilire se una moneta è apprezzata (o deprezzata) oppure no rispetto ad un'altra. Qualora la PPA non fosse verificata (l'equazione dà un determinato tasso di cambio, ma il tasso di cambio effettivamente verificato è diverso), si apre la strada per questa verifica. Ad esempio, se in base al confronto tra i prezzi di <a href="/wiki/Euro" title="Euro">euro</a> e <a href="/wiki/Dollaro_statunitense" title="Dollaro statunitense">dollaro</a> risulta che il tasso di cambio dovrebbe essere di (ad es.) 1,250 (dollari per ottenere un euro), ma in realtà questo tasso di cambio è di 1,350, vuol dire che l'euro è sopravvalutato rispetto al dollaro. </p><p>Un indice molto utilizzato è quello <a href="/wiki/Indice_Big_Mac" title="Indice Big Mac">Big Mac</a> (basato sui prezzi del celebre panino e pubblicato dall'<a href="/wiki/The_Economist" title="The Economist">Economist</a>), anche se in realtà questo indice si basa sulla <i><a href="/wiki/Legge_del_prezzo_unico" title="Legge del prezzo unico">legge del prezzo unico</a></i>. </p> <div class="mw-heading mw-heading2"><h2 id="Riscontri_reali">Riscontri reali</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=6" title="Modifica la sezione Riscontri reali" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=6" title="Edit section's source code: Riscontri reali"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Vantaggi_del_PPA">Vantaggi del PPA</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=7" title="Modifica la sezione Vantaggi del PPA" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=7" title="Edit section's source code: Vantaggi del PPA"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Uno dei principali vantaggi è che i tassi di cambio dei PPA sono relativamente stabili nel tempo. Al contrario, i tassi di mercato sono più volatili e il loro utilizzo potrebbe produrre forti oscillazioni nelle misure aggregate di crescita, anche quando i tassi di crescita nei singoli paesi sono stabili. Un altro svantaggio dei tassi basati sul mercato è che essi sono rilevanti solo per i beni scambiati a livello internazionale. I beni e i servizi non scambiati tendono ad essere più economici nei paesi a basso reddito rispetto ai paesi ad alto reddito. Un taglio di capelli a New York è più costoso che a Lima; il prezzo di una corsa in taxi della stessa distanza è più alto a Parigi che a Tunisi; e un biglietto per una partita di cricket costa di più a Londra che a Lahore. Infatti, poiché i salari tendono ad essere più bassi nei paesi più poveri, e i servizi sono spesso ad alta intensità di manodopera, il prezzo di un taglio di capelli a Lima è probabilmente più conveniente che a New York, anche quando il costo della produzione di beni commerciabili, come i macchinari, è lo stesso in entrambi i paesi. Qualsiasi analisi che non tenga conto di queste differenze nei prezzi dei beni non scambiati tra i paesi sottovaluterà il potere d'acquisto dei consumatori dei mercati emergenti e dei paesi in via di sviluppo e, di conseguenza, il loro benessere generale. Per questo motivo, i PPA sono generalmente considerati una migliore misura del benessere generale. </p> <div class="mw-heading mw-heading3"><h3 id="Svantaggi_del_PPA">Svantaggi del PPA</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=8" title="Modifica la sezione Svantaggi del PPA" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=8" title="Edit section's source code: Svantaggi del PPA"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il principale svantaggio è che il PPA è più difficile da misurare rispetto ai tassi di mercato. Per facilitare il confronto dei prezzi tra i paesi, è stato istituito il Programma Internazionale di Confronti (ICP) dalle <a href="/wiki/Organizzazione_delle_Nazioni_Unite" title="Organizzazione delle Nazioni Unite">Nazioni Unite</a> e dall'Università della Pennsylvania nel 1968. L'ICP è un'enorme impresa statistica, e nuovi confronti dei prezzi sono disponibili non molto frequentemente. Sono state sollevate questioni metodologiche anche per quanto riguarda le indagini precedenti. Tra una data d'indagine e l'altra, i tassi di PPA devono essere stimati, il che può introdurre imprecisioni nella misurazione. Inoltre, l'ICP non copre tutti i paesi, il che significa che i dati per i paesi mancanti devono essere stimati. </p> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=9" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=9" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text">Il tasso di cambio qui indica la quantità di valuta estera per ottenere una unità di valuta nazionale. Quando il tasso <i>aumenta</i> (<i>diminuisce</i>), la moneta nazionale si apprezza (si deprezza).</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Bibliografia">Bibliografia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=10" title="Modifica la sezione Bibliografia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=10" title="Edit section's source code: Bibliografia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>G. De Arcangelis, <i>Economia internazionale</i>. Milano, McGraw-Hill, 2005. <a href="/wiki/Speciale:RicercaISBN/8838662320" class="internal mw-magiclink-isbn">ISBN 88-386-6232-0</a>.</li> <li>B. Jossa e M. Musella, <i>Macroeconomia: teorie per la politica economica</i>. Roma, Carocci, 1996. <a href="/wiki/Speciale:RicercaISBN/8843004557" class="internal mw-magiclink-isbn">ISBN 88-430-0455-7</a>.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=11" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=11" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Legge_del_prezzo_unico" title="Legge del prezzo unico">Legge del prezzo unico</a></li> <li><a href="/wiki/Indice_Big_Mac" title="Indice Big Mac">Indice Big Mac</a></li> <li><a href="/wiki/Calcolo_delle_parit%C3%A0_dei_poteri_d%27acquisto" title="Calcolo delle parità dei poteri d'acquisto">Calcolo delle parità dei poteri d'acquisto</a></li> <li><a href="/wiki/Stati_per_PIL_(PPA)" title="Stati per PIL (PPA)">Stati per PIL (PPA)</a></li> <li><a href="/wiki/Stati_per_PIL_(PPA)_pro_capite" title="Stati per PIL (PPA) pro capite">Stati per PIL (PPA) pro capite</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&veaction=edit&section=12" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Parit%C3%A0_di_potere_d%27acquisto&action=edit&section=12" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20091123071300/http://epp.eurostat.ec.europa.eu/cache/ITY_OFFPUB/KS-BE-06-002/EN/KS-BE-06-002-EN.PDF">Manuale metodologico sulle parità dei poteri d'acquisto Oecd-Eurostat</a> (file pdf in inglese; 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