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Tilgængelig på 46 sprog" > <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-46" 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">46 sprog</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AC%D9%8A%D8%B1%D8%A7%D8%B1%D8%AF_%D8%AF%D9%8A%D8%A8%D8%B1%D9%88" title="جيرارد ديبرو – arabisk" lang="ar" hreflang="ar" data-title="جيرارد ديبرو" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%AC%D9%8A%D8%B1%D8%A7%D8%B1%D8%AF_%D8%AF%D9%8A%D8%A8%D8%B1%D9%88" title="جيرارد ديبرو – Egyptian Arabic" lang="arz" hreflang="arz" data-title="جيرارد ديبرو" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Jerar_Debr%C3%B6" title="Jerar Debrö – aserbajdsjansk" lang="az" hreflang="az" data-title="Jerar Debrö" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%96%D1%8D%D1%80%D0%B0%D1%80_%D0%94%D1%8D%D0%B1%D1%80%D0%BE" title="Жэрар Дэбро – belarusisk" lang="be" hreflang="be" data-title="Жэрар Дэбро" data-language-autonym="Беларуская" data-language-local-name="belarusisk" 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%94%D0%B6%D0%B5%D1%80%D0%B0%D1%80%D0%B4_%D0%94%D0%B5%D0%B1%D1%80%D1%8E" title="Джерард Дебрю – bulgarsk" lang="bg" hreflang="bg" data-title="Джерард Дебрю" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – catalansk" lang="ca" hreflang="ca" data-title="Gérard Debreu" data-language-autonym="Català" data-language-local-name="catalansk" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – tjekkisk" lang="cs" hreflang="cs" data-title="Gérard Debreu" data-language-autonym="Čeština" data-language-local-name="tjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – tysk" lang="de" hreflang="de" data-title="Gérard Debreu" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%96%CE%B5%CF%81%CE%AC%CF%81_%CE%9D%CF%84%CE%B5%CE%BC%CF%80%CF%81%CE%AD" title="Ζεράρ Ντεμπρέ – græsk" lang="el" hreflang="el" data-title="Ζεράρ Ντεμπρέ" data-language-autonym="Ελληνικά" data-language-local-name="græsk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – engelsk" lang="en" hreflang="en" data-title="Gérard Debreu" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – spansk" lang="es" hreflang="es" data-title="Gérard Debreu" data-language-autonym="Español" data-language-local-name="spansk" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – estisk" lang="et" hreflang="et" data-title="Gérard Debreu" data-language-autonym="Eesti" data-language-local-name="estisk" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – baskisk" lang="eu" hreflang="eu" data-title="Gérard Debreu" data-language-autonym="Euskara" data-language-local-name="baskisk" 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/%DA%98%D8%B1%D8%A7%D8%B1_%D8%AF%D9%88%D8%A8%D8%B1%D9%88" title="ژرار دوبرو – persisk" lang="fa" hreflang="fa" data-title="ژرار دوبرو" data-language-autonym="فارسی" data-language-local-name="persisk" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – finsk" lang="fi" hreflang="fi" data-title="Gérard Debreu" data-language-autonym="Suomi" data-language-local-name="finsk" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – fransk" lang="fr" hreflang="fr" data-title="Gérard Debreu" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – skotsk gælisk" lang="gd" hreflang="gd" data-title="Gérard Debreu" data-language-autonym="Gàidhlig" data-language-local-name="skotsk gælisk" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%96%27%D7%A8%D7%90%D7%A8_%D7%93%D7%91%D7%A8%D7%94" title="ז'ראר דברה – hebraisk" lang="he" hreflang="he" data-title="ז'ראר דברה" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%BA%D5%A5%D6%80%D5%A1%D6%80_%D4%B4%D5%A5%D5%A2%D6%80%D5%B5%D5%B8" title="Ժերար Դեբրյո – armensk" lang="hy" hreflang="hy" data-title="Ժերար Դեբրյո" data-language-autonym="Հայերեն" data-language-local-name="armensk" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – indonesisk" lang="id" hreflang="id" data-title="Gérard Debreu" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Gerard_Debreu" title="Gerard Debreu – ido" lang="io" hreflang="io" data-title="Gerard Debreu" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – italiensk" lang="it" hreflang="it" data-title="Gérard Debreu" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B8%E3%82%A7%E3%83%A9%E3%83%BC%E3%83%AB%E3%83%BB%E3%83%89%E3%83%96%E3%83%AB%E3%83%BC" title="ジェラール・ドブルー – japansk" lang="ja" hreflang="ja" data-title="ジェラール・ドブルー" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A0%9C%EB%9D%BC%EB%A5%B4_%EB%93%9C%EB%B8%8C%EB%A2%B0" title="제라르 드브뢰 – koreansk" lang="ko" hreflang="ko" data-title="제라르 드브뢰" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Gerardus_Debreu" title="Gerardus Debreu – latin" lang="la" hreflang="la" data-title="Gerardus Debreu" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Gerard_Debreu" title="Gerard Debreu – litauisk" lang="lt" hreflang="lt" data-title="Gerard Debreu" data-language-autonym="Lietuvių" data-language-local-name="litauisk" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%96%D0%B5%D1%80%D0%B0%D1%80_%D0%94%D0%B5%D0%B1%D1%80%D0%B5" title="Жерар Дебре – makedonsk" lang="mk" hreflang="mk" data-title="Жерар Дебре" data-language-autonym="Македонски" data-language-local-name="makedonsk" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – malajisk" lang="ms" hreflang="ms" data-title="Gérard Debreu" data-language-autonym="Bahasa Melayu" data-language-local-name="malajisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – nederlandsk" lang="nl" hreflang="nl" data-title="Gérard Debreu" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – bokmål" lang="nb" hreflang="nb" data-title="Gérard Debreu" data-language-autonym="Norsk bokmål" data-language-local-name="bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – polsk" lang="pl" hreflang="pl" data-title="Gérard Debreu" data-language-autonym="Polski" data-language-local-name="polsk" 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/%DA%AF%DB%8C%D8%B1%D8%A7%D8%B1%DA%88_%DA%88%D8%A8%D8%B1%DB%8C%D9%88" title="گیرارڈ ڈبریو – Western Punjabi" lang="pnb" hreflang="pnb" data-title="گیرارڈ ڈبریو" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – portugisisk" lang="pt" hreflang="pt" data-title="Gérard Debreu" data-language-autonym="Português" data-language-local-name="portugisisk" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – rumænsk" lang="ro" hreflang="ro" data-title="Gérard Debreu" data-language-autonym="Română" data-language-local-name="rumænsk" 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%94%D0%B5%D0%B1%D1%80%D1%91,_%D0%96%D0%B5%D1%80%D0%B0%D1%80" title="Дебрё, Жерар – russisk" lang="ru" hreflang="ru" data-title="Дебрё, Жерар" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – Simple English" lang="en-simple" hreflang="en-simple" data-title="Gérard Debreu" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – slovakisk" lang="sk" hreflang="sk" data-title="Gérard Debreu" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" 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%96%D0%B5%D1%80%D0%B0%D1%80_%D0%94%D0%B5%D0%B1%D1%80%D0%B5" title="Жерар Дебре – serbisk" lang="sr" hreflang="sr" data-title="Жерар Дебре" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Gerard_Debreu" title="Gerard Debreu – svensk" lang="sv" hreflang="sv" data-title="Gerard Debreu" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – tyrkisk" lang="tr" hreflang="tr" data-title="Gérard Debreu" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%96%D0%B5%D1%80%D0%B0%D1%80_%D0%94%D0%B5%D0%B1%D1%80%D0%B5" title="Жерар Дебре – ukrainsk" lang="uk" hreflang="uk" data-title="Жерар Дебре" data-language-autonym="Українська" data-language-local-name="ukrainsk" 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/%DA%AF%DB%8C%D8%B1%D8%A7%D8%B1%DA%88_%DA%88%DB%8C%D8%A8%D8%B1%DB%8C%D9%88" title="گیرارڈ ڈیبریو – urdu" lang="ur" hreflang="ur" data-title="گیرارڈ ڈیبریو" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – usbekisk" lang="uz" hreflang="uz" data-title="Gérard Debreu" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="usbekisk" 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/G%C3%A9rard_Debreu" title="Gérard Debreu – vietnamesisk" lang="vi" hreflang="vi" data-title="Gérard Debreu" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/G%C3%A9rard_Debreu" title="Gérard Debreu – yoruba" lang="yo" hreflang="yo" data-title="Gérard Debreu" data-language-autonym="Yorùbá" data-language-local-name="yoruba" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%82%91%E6%8B%89%E5%BE%B7%C2%B7%E5%BE%B7%E5%B8%83%E9%AD%AF" title="傑拉德·德布魯 – kinesisk" lang="zh" hreflang="zh" data-title="傑拉德·德布魯" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</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/Q210960#sitelinks-wikipedia" title="Redigér sproglinks" class="wbc-editpage">Redigér links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Navnerum"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/G%C3%A9rard_Debreu" title="Se indholdssiden [c]" accesskey="c"><span>Artikel</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Diskussion:G%C3%A9rard_Debreu&action=edit&redlink=1" rel="discussion" class="new" title="Diskussion om indholdet på siden (ikke skrevet endnu) [t]" accesskey="t"><span>Diskussion</span></a></li> </ul> </div> </div> <div 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href="/w/index.php?title=G%C3%A9rard_Debreu&veaction=edit" title="Redigér denne side [v]" accesskey="v"><span>Redigér</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=G%C3%A9rard_Debreu&action=edit" title="Rediger kildekoden for denne side [e]" accesskey="e"><span>Rediger kildekode</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=G%C3%A9rard_Debreu&action=history"><span>Se historik</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generelt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Speciel:Hvad_linker_hertil/G%C3%A9rard_Debreu" title="Liste med alle sider som henviser hertil [j]" accesskey="j"><span>Hvad henviser hertil</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Speciel:Relaterede_%C3%A6ndringer/G%C3%A9rard_Debreu" rel="nofollow" title="Seneste ændringer af sider som denne side henviser til [k]" accesskey="k"><span>Beslægtede ændringer</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=da&campaign=dk" title="Upload filer [u]" accesskey="u"><span>Upload fil</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Speciel:Specialsider" title="Liste over alle specialsider [q]" accesskey="q"><span>Specialsider</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=G%C3%A9rard_Debreu&oldid=9820077" title="Permanent link til denne version af denne side"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=G%C3%A9rard_Debreu&action=info" title="Yderligere oplysninger om denne side"><span>Sideinformation</span></a></li><li id="t-cite" 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.infobox-above,.mw-parser-output .infobox-full-data,.mw-parser-output .infobox-data,.mw-parser-output .infobox-below,.mw-parser-output .infobox-subheader,.mw-parser-output .infobox-image,.mw-parser-output .infobox-navbar{vertical-align:top}.mw-parser-output .infobox-label,.mw-parser-output .infobox-data{text-align:left}.mw-parser-output .infobox .infobox-above,.mw-parser-output .infobox .infobox-title{font-size:125%;font-weight:bold;text-align:center}.mw-parser-output .infobox-title{padding:0.2em}.mw-parser-output .infobox .infobox-header,.mw-parser-output .infobox .infobox-subheader,.mw-parser-output .infobox .infobox-image,.mw-parser-output .infobox .infobox-full-data,.mw-parser-output .infobox .infobox-below{text-align:center}.mw-parser-output .infobox .infobox-navbar{text-align:right}body.skin-minerva .mw-parser-output .infobox-header,body.skin-minerva .mw-parser-output .infobox-subheader,body.skin-minerva .mw-parser-output .infobox-above,body.skin-minerva .mw-parser-output .infobox-title,body.skin-minerva .mw-parser-output .infobox-image,body.skin-minerva .mw-parser-output .infobox-full-data,body.skin-minerva .mw-parser-output .infobox-below{text-align:center}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data div{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data div{background:#1f1f23!important;color:#f8f9fa}}</style><table class="infobox biography vcard"><tbody><tr><th colspan="2" class="infobox-above fn org" style="background: #ccf; padding-top:0.3em; padding-bottom:0.3em; font-size:140%; line-height: 130%;">Gérard Debreu</th></tr><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/Fil:Debreu,_G%C3%A9rard_(1921-2004).jpeg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Debreu%2C_G%C3%A9rard_%281921-2004%29.jpeg/214px-Debreu%2C_G%C3%A9rard_%281921-2004%29.jpeg" decoding="async" width="214" height="300" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/2/2d/Debreu%2C_G%C3%A9rard_%281921-2004%29.jpeg 1.5x" data-file-width="286" data-file-height="400" /></a></span> </td></tr><tr><th colspan="2" class="infobox-header" style="background: #ccf;">Personlig information</th></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Født</th><td class="infobox-data" style="vertical-align:top;"><a href="/wiki/4._juli" title="4. juli">4. juli </a><a href="/wiki/1921" title="1921">1921</a> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P569" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span><br /><a href="/wiki/Calais" title="Calais">Calais</a>, <a href="/wiki/Frankrig" title="Frankrig">Frankrig</a> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P19" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Død</th><td class="infobox-data" style="vertical-align:top;"><a href="/wiki/31._december" title="31. december">31. december </a><a href="/wiki/2004" title="2004">2004</a> (83 år) <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P570" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span><br /><a href="/wiki/Paris" title="Paris">Paris</a>, <a href="/wiki/Frankrig" title="Frankrig">Frankrig</a> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P20" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Gravsted</th><td class="infobox-data" style="vertical-align:top;">columbarium du Père-Lachaise <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P119" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Nationalitet</th><td class="infobox-data" style="vertical-align:top;"><span class="flagicon"><span class="mw-image-border" typeof="mw:File"><a href="/wiki/Frankrig" title="Frankrig"><img alt="Frankrig" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Flag_of_France.svg/22px-Flag_of_France.svg.png" decoding="async" width="22" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Flag_of_France.svg/33px-Flag_of_France.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Flag_of_France.svg/44px-Flag_of_France.svg.png 2x" data-file-width="900" data-file-height="600" /></a></span></span> Fransk</td></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Bopæl</th><td class="infobox-data" style="vertical-align:top;"><a href="/wiki/USA" title="USA">USA</a><small> (fra 1950)</small> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P551" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><th colspan="2" class="infobox-header" style="background: #ccf;">Uddannelse og virke</th></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Uddannelsessted</th><td class="infobox-data" style="vertical-align:top;"><a href="/wiki/Stanford_University" title="Stanford University">Stanford University</a><small></small>,<br /><a href="/wiki/%C3%89cole_Normale_Sup%C3%A9rieure" title="École Normale Supérieure">École Normale Supérieure</a><small></small> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P69" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Medlem af</th><td class="infobox-data" style="vertical-align:top;">Econometric Society<small> (fra 1954)</small>,<br /><a href="/wiki/Acad%C3%A9mie_des_sciences" title="Académie des sciences">Académie des sciences</a><small></small>,<br />National Academy of Sciences<small> (fra 1977)</small>,<br />American Association for the Advancement of Science<small></small>,<br />American Academy of Arts and Sciences<small></small> med flere <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P463" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Beskæftigelse</th><td class="infobox-data" style="vertical-align:top;"><a href="/wiki/Forsker" class="mw-redirect" title="Forsker">Forsker</a><small></small>, <a href="/wiki/Matematiker" title="Matematiker">matematiker</a><small></small>, <a href="/wiki/%C3%98konomi_(uddannelse)" title="Økonomi (uddannelse)">økonom</a><small></small> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P106" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Fagområde</th><td class="infobox-data" style="vertical-align:top;">Generel ligevægtsteori, <a href="/wiki/National%C3%B8konomi" title="Nationaløkonomi">økonomi</a> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P101" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Arbejdsgiver</th><td class="infobox-data" style="vertical-align:top;"><a href="/wiki/University_of_California,_Berkeley" title="University of California, Berkeley">University of California, Berkeley</a><small></small>, <a href="/wiki/Yale_University" title="Yale University">Yale University</a><small></small> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P108" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><th colspan="2" class="infobox-header" style="background: #ccf;">Nomineringer og priser</th></tr><tr><th scope="row" class="infobox-label" style="vertical-align:top;">Udmærkelser</th><td class="infobox-data" style="vertical-align:top;"><a href="/wiki/Officer_af_%C3%86reslegionen" class="mw-redirect" title="Officer af Æreslegionen">Officer af Æreslegionen</a><small> (1993)</small>,<br />doctorat honoris causa de l'université Toulouse-I<small> (1983)</small>,<br />doctorat honoris causa de l'université de Dunkerque<small> (1997)</small>,<br />Guggenheim-Stipendium<small> (1968)</small>,<br />kommandør af Den Nationale Fortjensteorden<small></small> med flere <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960#P166" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></td></tr><tr><td colspan="2" class="infobox-below" style="border-top: 1px solid #aaa; line-height: 1.5em"><small><small>Information med symbolet <span class="mw-valign-text-top" typeof="mw:File/Frameless"><span><img alt="Billede af blyant" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png" decoding="async" width="8" height="8" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/12px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/16px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></span></span> hentes fra <a href="https://www.wikidata.org/wiki/" class="extiw" title="d:">Wikidata</a>. <span style="white-space:nowrap">Kildehenvisninger foreligger sammesteds.</span></small></small><br /><div style="text-align: right;"><span typeof="mw:File"><a href="https://www.wikidata.org/wiki/Q210960" title="d:Q210960"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Wikidata-logo_S.svg/20px-Wikidata-logo_S.svg.png" decoding="async" width="20" height="11" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Wikidata-logo_S.svg/30px-Wikidata-logo_S.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Wikidata-logo_S.svg/40px-Wikidata-logo_S.svg.png 2x" data-file-width="1050" data-file-height="590" /></a></span> <small>[<a href="https://www.wikidata.org/wiki/Q210960" class="extiw" title="d:Q210960"> redigér på Wikidata</a> ] <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q210960" title="Rediger på Wikidata"><img alt="Rediger på Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/5px-Blue_pencil.svg.png" decoding="async" width="5" height="5" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/8px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></small></div></td></tr></tbody></table> <table align="right" id="toc" style="margin: 0 0 0 5px; padding: 5px;margin-left:15px;margin-top:10px;margin-bottom:15px" class="thumb tright"> <tbody><tr> <td><span typeof="mw:File"><a href="/wiki/Fil:Nobel_prize_medal.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/32/Nobel_prize_medal.svg/70px-Nobel_prize_medal.svg.png" decoding="async" width="70" height="70" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/32/Nobel_prize_medal.svg/105px-Nobel_prize_medal.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/32/Nobel_prize_medal.svg/140px-Nobel_prize_medal.svg.png 2x" data-file-width="150" data-file-height="150" /></a></span> </td> <td style="text-align:center;"><a href="/wiki/Nobelprisen_i_%C3%B8konomi" class="mw-redirect" title="Nobelprisen i økonomi">Nobelprisen i økonomi</a><br /><a href="/wiki/1983" title="1983">1983</a> </td></tr></tbody></table> <p><b>Gérard Debreu</b> (født <a href="/wiki/4._juli" title="4. juli">4. juli</a> <a href="/wiki/1921" title="1921">1921</a> i <a href="/wiki/Calais" title="Calais">Calais</a>, død <a href="/wiki/31._december" title="31. december">31. december</a> <a href="/wiki/2004" title="2004">2004</a> i <a href="/wiki/Paris" title="Paris">Paris</a>) var en fransk <a href="/wiki/%C3%98konom" title="Økonom">økonom</a> og <a href="/wiki/Matematiker" title="Matematiker">matematiker</a>, der også fik amerikansk <a href="/wiki/Statsborgerskab" title="Statsborgerskab">statsborgerskab</a>. Han var bl.a. professor ved <a href="/wiki/University_of_California,_Berkeley" title="University of California, Berkeley">University of California, Berkeley</a> og modtog <a href="/wiki/Nobelprisen_i_%C3%B8konomi" class="mw-redirect" title="Nobelprisen i økonomi">Nobelprisen i økonomi</a> i 1983. Han er kendt for flere grundlæggende bidrag til moderne <a href="/wiki/Mikro%C3%B8konomi" title="Mikroøkonomi">mikroøkonomi</a>, først og fremmest sit arbejde sammen med <a href="/wiki/Kenneth_Arrow" title="Kenneth Arrow">Kenneth Arrow</a>, der påviste eksistensen af en ligevægt for en økonomi med <a href="/wiki/Fuldkommen_konkurrence" title="Fuldkommen konkurrence">fuldkommen konkurrence</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Baggrund">Baggrund</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=G%C3%A9rard_Debreu&veaction=edit&section=1" title="Redigér afsnit: Baggrund" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=G%C3%A9rard_Debreu&action=edit&section=1" title="Edit section's source code: Baggrund"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Gérard Debreu blev født i <a href="/wiki/Calais" title="Calais">Calais</a>, hvor hans far arbejdede i tekstilbranchen. Han blev forældreløs i en tidlig alder - faderen begik selvmord, og moderen døde tidligt af naturlige årsager. I 1941 påbegyndte han studier ved det prestigefulde <a href="/wiki/%C3%89cole_Normale_Sup%C3%A9rieure" title="École Normale Supérieure">École Normale Supérieure</a> i <a href="/wiki/Paris" title="Paris">Paris</a>. Efter <a href="/wiki/D-dag" title="D-dag">D-dag</a> blev han soldat i den franske hær og blev i denne anledning bl.a. sendt til <a href="/wiki/Algeriet" title="Algeriet">Algeriet</a> og <a href="/wiki/Tyskland" title="Tyskland">Tyskland</a>. Han genoptog studierne i 1945-46 og var på det tidspunkt blevet interesseret i <a href="/wiki/%C3%98konomi" title="Økonomi">økonomi</a>, ikke mindst <a href="/wiki/L%C3%A9on_Walras" title="Léon Walras">Léon Walras</a>' generelle ligevægtsteori. Fra 1946 til 1948 arbejdede han som assistent ved <a href="/w/index.php?title=Centre_National_de_la_Recherche_Scientifique&action=edit&redlink=1" class="new" title="Centre National de la Recherche Scientifique (ikke skrevet endnu)">Centre National de la Recherche Scientifique</a>. I løbet af disse to et halvt år fuldførte han sin overgang fra matematik til økonomi. I 1948 kom han til USA på et <a href="/wiki/Rockefeller_Foundation" title="Rockefeller Foundation">Rockefeller Fellowship</a>, som gjorde ham i stand til at besøge adskillige amerikanske universiteter såvel som universiteterne i <a href="/wiki/Uppsala" title="Uppsala">Uppsala</a> og <a href="/wiki/Oslo" title="Oslo">Oslo</a> i 1949–50. </p><p>Debreu giftede sig med Françoise Bled i 1946. De fik to døtre, Chantal og Florence, født i henholdsvis 1946 og 1950. Debreu døde i Paris nytårsaften 2004, 83 år gammel, og ligger begravet på <a href="/wiki/P%C3%A8re_Lachaise" class="mw-redirect" title="Père Lachaise">Père Lachaise</a>-kirkegården. </p> <div class="mw-heading mw-heading2"><h2 id="Forskning">Forskning</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=G%C3%A9rard_Debreu&veaction=edit&section=2" title="Redigér afsnit: Forskning" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=G%C3%A9rard_Debreu&action=edit&section=2" title="Edit section's source code: Forskning"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>I 1950 begyndte Debreu at arbejde som forskningsassistent ved Cowles-kommissionen, hvor han forblev i fem år. I 1954 offentliggjorde han sammen med Kenneth Arrow et banebrydende papir med titlen <i>Existence of an Equilibrium for a Competitive Economy</i>.<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> Her leverede de et definitivt matematisk bevis for eksistensen af en generel ligevægt ved hjælp af topologiske metoder i stedet for <a href="/wiki/Differentialregning" title="Differentialregning">differentialregning</a>. </p><p>I 1955 blev han ansat ved <a href="/wiki/Yale_University" title="Yale University">Yale University</a>. I 1959 offentliggjorde han sin klassiske monografi <i>Theory of Value: An Axiomatic Analysis of Economic Equilibrium</i>, som er et af de vigtigste arbejder inden for matematisk økonomi. I dette værk opstiller Debreu et aksiomatisk grundlag for <a href="/wiki/Marked" title="Marked">markeder</a> med fuldkommen konkurrence. Han påviste også eksistensen af en ligevægt ved hjælp af en ny tilgang. hvor han bl.a. anvendte <a href="/w/index.php?title=Kakutani&action=edit&redlink=1" class="new" title="Kakutani (ikke skrevet endnu)">Kakutanis</a> fikspunkt-teorem. Debreu beskæftigede sig med begrebet usikkerhed og viste, hvordan det kan indarbejdes i en deterministisk model. Her indførte han begrebet betinget vare, som er et løfte om at levere en bestemt vare, hvis en særlig tilstand bliver realiseret. Dette begreb bruges meget ofte inden for <a href="/wiki/Finansiering" title="Finansiering">finansiering</a>, hvor det er kendt som et Arrow-Debreu-aktiv. </p><p>I 1960–61 arbejdede han ved <i>Center for Advanced Study in the Behavioral Sciences</i> på <a href="/wiki/Stanford_University" title="Stanford University">Stanford University</a>, hvor han brugte det meste af sin tid på et avanceret bevis, som blev færdigt i 1962, af et generelt teorem om eksistensen af en økonomisk ligevægt. </p><p>I 1962 blev han professor i økonomi ved University of California, Berkeley. I 1975 skiftede han til et professorat i matematik.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>I 1976 modtog han den franske orden <a href="/wiki/%C3%86reslegionen" title="Æreslegionen">Æreslegionen</a>, og i 1983 fik han Nobelprisen i økonomi "for at have indarbejdet en ny analytisk metode i økonomisk teori samt hans reformulering af teorien bag ligevægtsøkonomier."<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Kenneth Arrow havde allerede fået Nobelprisen 11 år tidligere for sit arbejde med generel ligevægts- og velfærdsteori. </p><p>I 1990 var Debreu formand for den amerikanske økonomsammenslutning <a href="/wiki/American_Economic_Association" title="American Economic Association">American Economic Association</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Kilder">Kilder</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=G%C3%A9rard_Debreu&veaction=edit&section=3" title="Redigér afsnit: Kilder" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=G%C3%A9rard_Debreu&action=edit&section=3" title="Edit section's source code: Kilder"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r11780210">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">^</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://cowles.econ.yale.edu/P/cp/p00b/p0087.pdf">Arrow, K.J. og G. Debreu (1954): Existence of an Equilibrium for a Competitive Economy. <i>Econometrica</i>, vol. 22, no. 3.</a></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">^</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.econlib.org/library/Enc/bios/Debreu.html">"Gerard Debreu (1921–2004)". The Concise Encyclopedia of Economics. Library of Economics and Liberty (2nd ed.) (Liberty Fund). 2008.</a></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">^</a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r11752076">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free a,.mw-parser-output .citation .cs1-lock-free a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited a,.mw-parser-output .id-lock-registration a,.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription a,.mw-parser-output .citation .cs1-lock-subscription a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:linear-gradient(transparent,transparent),url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:#d33}.mw-parser-output .cs1-visible-error{color:#d33}.mw-parser-output .cs1-maint{display:none;color:#3a3;margin-left:0.3em}.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://nobelprize.org/nobel_prizes/economics/laureates/1983/">"The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel 1983"</a>. Nobelstiftelsen<span class="reference-accessdate">. Hentet 13. maj 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=The+Sveriges+Riksbank+Prize+in+Economic+Sciences+in+Memory+of+Alfred+Nobel+1983&rft.pub=Nobelstiftelsen&rft_id=http%3A%2F%2Fnobelprize.org%2Fnobel_prizes%2Feconomics%2Flaureates%2F1983%2F&rfr_id=info%3Asid%2Fda.wikipedia.org%3AG%C3%A9rard+Debreu" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Eksterne_henvisninger">Eksterne henvisninger</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=G%C3%A9rard_Debreu&veaction=edit&section=4" title="Redigér afsnit: Eksterne henvisninger" class="mw-editsection-visualeditor"><span>redigér</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=G%C3%A9rard_Debreu&action=edit&section=4" title="Edit section's source code: Eksterne henvisninger"><span>rediger kildetekst</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><div class="plainlinks" style="display:inline;"><span typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/11px-Commons-logo.svg.png" decoding="async" width="11" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/17px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/22px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span> <a href="/wiki/Wikimedia_Commons" title="Wikimedia Commons">Wikimedia Commons</a> har flere filer relateret til <b><a href="https://commons.wikimedia.org/wiki/Category:G%C3%A9rard_Debreu" class="extiw" title="commons:Category:Gérard Debreu">Gérard Debreu</a></b> </div></li></ul> <ul><li><a rel="nofollow" class="external text" href="http://www.nobelprize.org/nobel_prizes/economic-sciences/laureates/1983/debreu-facts.html">Materiale om Gérard Debreu på Nobelstiftelsens hjemmeside</a></li> <li><a rel="nofollow" class="external text" href="http://www.berkeley.edu/news/media/releases/2005/01/05_debreu.shtml">Nekrolog over Gérard Debreu. UC Berkeley News 5. januar 2005. 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class="navbox-group" style="width:1%">1969-1980</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ragnar_Frisch" title="Ragnar Frisch">Frisch</a> / <a href="/wiki/Jan_Tinbergen" title="Jan Tinbergen">Tinbergen</a> (1969)</li> <li><a href="/wiki/Paul_Samuelson" title="Paul Samuelson">Samuelson</a> (1970)</li> <li><a href="/wiki/Simon_Kuznets" title="Simon Kuznets">Kuznets</a> (1971)</li> <li><a href="/wiki/John_Hicks" title="John Hicks">Hicks</a> / <a href="/wiki/Kenneth_Arrow" title="Kenneth Arrow">Arrow</a> (1972)</li> <li><a href="/wiki/Wassily_Leontief" title="Wassily Leontief">Leontief</a> (1973)</li> <li><a href="/wiki/Gunnar_Myrdal" title="Gunnar Myrdal">Myrdal</a> / <a href="/wiki/F.A._Hayek" title="F.A. Hayek">Hayek</a> (1974)</li> <li><a href="/wiki/Leonid_Kantorovitj" title="Leonid Kantorovitj">Kantorovich</a> / <a href="/wiki/Tjalling_Koopmans" title="Tjalling Koopmans">Koopmans</a> (1975)</li> <li><a href="/wiki/Milton_Friedman" title="Milton Friedman">Friedman</a> (1976)</li> <li><a href="/wiki/Bertil_Ohlin" title="Bertil Ohlin">Ohlin</a> / <a href="/wiki/James_Meade" title="James Meade">Meade</a> (1977)</li> <li><a href="/wiki/Herbert_Simon" title="Herbert Simon">Simon</a> (1978)</li> <li><a href="/wiki/Theodore_Schultz" title="Theodore Schultz">Schultz</a> / <a href="/wiki/William_Arthur_Lewis" title="William Arthur Lewis">Lewis</a> (1979)</li> <li><a href="/wiki/Lawrence_Klein" title="Lawrence Klein">Klein</a> (1980)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">1981-1990</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/James_Tobin" title="James Tobin">Tobin</a> (1981)</li> <li><a href="/wiki/George_Stigler" title="George Stigler">Stigler</a> (1982)</li> <li><a class="mw-selflink selflink">Debreu</a> (1983)</li> <li><a href="/wiki/Richard_Stone" title="Richard Stone">Stone</a> (1984)</li> <li><a href="/wiki/Franco_Modigliani" title="Franco Modigliani">Modigliani</a> (1985)</li> <li><a href="/wiki/James_M._Buchanan" title="James M. Buchanan">Buchanan</a> (1986)</li> <li><a href="/wiki/Robert_Solow" title="Robert Solow">Solow</a> (1987)</li> <li><a href="/wiki/Maurice_Allais" title="Maurice Allais">Allais</a> (1988)</li> <li><a href="/wiki/Trygve_Haavelmo" title="Trygve Haavelmo">Haavelmo</a> (1989)</li> <li><a href="/wiki/Harry_Markowitz" title="Harry Markowitz">Markowitz</a> / <a href="/wiki/Merton_Miller" title="Merton Miller">Miller</a> / <a href="/wiki/William_Forsyth_Sharpe" title="William Forsyth Sharpe">Sharpe</a> (1990)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">1991-2000</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ronald_Coase" title="Ronald Coase">Coase</a> (1991)</li> <li><a href="/wiki/Gary_S._Becker" title="Gary S. Becker">Becker</a> (1992)</li> <li><a href="/wiki/Robert_Fogel" title="Robert Fogel">Fogel</a> / <a href="/wiki/Douglass_North" title="Douglass North">North</a> (1993)</li> <li><a href="/wiki/John_Harsanyi" title="John Harsanyi">Harsanyi</a> / <a href="/wiki/John_Forbes_Nash" title="John Forbes Nash">Nash</a> / <a href="/wiki/Reinhard_Selten" title="Reinhard Selten">Selten</a> (1994)</li> <li><a href="/wiki/Robert_Lucas,_Jr." title="Robert Lucas, Jr.">Lucas</a> (1995)</li> <li><a href="/wiki/James_Mirrlees" title="James Mirrlees">Mirrlees</a> / <a href="/wiki/William_Vickrey" title="William Vickrey">Vickrey</a> (1996)</li> <li><a href="/wiki/Robert_C._Merton" title="Robert C. Merton">Merton</a> / <a href="/wiki/Myron_Scholes" title="Myron Scholes">Scholes</a> (1997)</li> <li><a href="/wiki/Amartya_Sen" title="Amartya Sen">Sen</a> (1998)</li> <li><a href="/wiki/Robert_Mundell" title="Robert Mundell">Mundell</a> (1999)</li> <li><a href="/wiki/James_Heckman" title="James Heckman">Heckman</a> / <a href="/wiki/Daniel_McFadden" title="Daniel McFadden">McFadden</a> (2000)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">2001-2010</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/George_Akerlof" title="George Akerlof">Akerlof</a> / <a href="/wiki/Michael_Spence" title="Michael Spence">Spence</a> / <a href="/wiki/Joseph_Stiglitz" title="Joseph Stiglitz">Stiglitz</a> (2001)</li> <li><a href="/wiki/Daniel_Kahneman" title="Daniel Kahneman">Kahneman</a> / <a href="/wiki/Vernon_L._Smith" title="Vernon L. Smith">Smith</a> (2002)</li> <li><a href="/wiki/Robert_F._Engle" title="Robert F. Engle">Engle</a> / <a href="/wiki/Clive_Granger" title="Clive Granger">Granger</a> (2003)</li> <li><a href="/wiki/Finn_E._Kydland" title="Finn E. Kydland">Kydland</a> / <a href="/wiki/Edward_C._Prescott" title="Edward C. Prescott">Prescott</a> (2004)</li> <li><a href="/wiki/Robert_Aumann" title="Robert Aumann">Aumann</a> / <a href="/wiki/Thomas_Schelling" title="Thomas Schelling">Schelling</a> (2005)</li> <li><a href="/wiki/Edmund_Phelps" title="Edmund Phelps">Phelps</a> (2006)</li> <li><a href="/wiki/Leonid_Hurwicz" title="Leonid Hurwicz">Hurwicz</a> / <a href="/wiki/Eric_Maskin" title="Eric Maskin">Maskin</a> / <a href="/wiki/Roger_Myerson" title="Roger Myerson">Myerson</a> (2007)</li> <li><a href="/wiki/Paul_Krugman" title="Paul Krugman">Krugman</a> (2008)</li> <li><a href="/wiki/Elinor_Ostrom" title="Elinor Ostrom">Ostrom</a> / <a href="/wiki/Oliver_Williamson" title="Oliver Williamson">Williamson</a> (2009)</li> <li><a href="/wiki/Peter_Diamond" title="Peter Diamond">Diamond</a> / <a href="/wiki/Dale_Mortensen" title="Dale Mortensen">Mortensen</a> / <a href="/wiki/Christopher_Pissarides" title="Christopher Pissarides">Pissarides</a> (2010)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">2011-2020</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Thomas_J._Sargent" title="Thomas J. 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