CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "www.tandfonline.com",cType: 'managed',cRay: '8e6ffdb738db7975',cH: 'YHK9Y0B6JOE1lssur7vVavyaKrf2UMx3lL76Xl3LU_Y-1732352659-1.2.1.1-igOxpVsSIvGbru6.OZiWwbZBLpfHaBOBBXJHlEV9tOgOTxZ4JY29uRS8LEFD186t',cUPMDTk: "\/doi\/abs\/10.1080\/21693277.2013.858377?__cf_chl_tk=g9PqwQ0kyYZn3KflrpwqZKeWB8u0mmD31jx0tuGxl_0-1732352659-1.0.1.1-v4q2cf2rokEhSp6lqCVuQTE8ANWR9okeP.CfP5_10RE",cFPWv: 'g',cITimeS: '1732352659',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/doi\/abs\/10.1080\/21693277.2013.858377?__cf_chl_f_tk=g9PqwQ0kyYZn3KflrpwqZKeWB8u0mmD31jx0tuGxl_0-1732352659-1.0.1.1-v4q2cf2rokEhSp6lqCVuQTE8ANWR9okeP.CfP5_10RE",md: "5x_D04A_TovebM4MNOZWn0DN29wxkJqXvEh1286Trmo-1732352659-1.2.1.1-7eSHaef0BnnxjlxtlLfAjb6wPR4BtGvDK8apI4O.ESiGhXWjFLfH1FVOJn17EVhjhKxEZ5KyFSjqJ4ipqipTgjTHISgDj2iQeYCHAstLrPlyhZGpxoSc84AbGtUoJbHlBwld7VBGzYAIqJoYhg5fsQOZQONbiLj_7Rcjzw5clACSuaJWukp3V9XRIlUJ_qFN9Cf_aCoO2gsFAjQc4rsmfuw2iZUjqWYb4gYGOi1bVJbC.rgzw6Bcze1U9mP5A9gQJoQjcnE2wlsMiDH79fGoy4ttIkkKkRFruGR3PO9dYNAgp8NNQdon4AuDIz4OIHW3ODYi3EnIIP7VBHVBIjVF2.ZZfLIfDFKJI4SSv0RvC34CN0irh7hM37H.HU9Fo4qXTOXq8KykZ39b_0Jzws908WbDAbZPrMtPrGBT5K7cIKqHD0J9zuEI8oufHnOqYDfDOYgvA_cCUOOEZAPikczre7iFFebQ6.ZWV31wPirWBzRbDrztR3WOMrh00.vgkx1638xr3f18XEH8A0JSMMzud7mWWgaMf6HVbkm1QHxOJrJmVN9HSDGvMMRa2KwlGofk2PcqcR9KsL6v30vLuPs4nVwFejepqEsiKXBENhQeUfhqMjSTQKbdbCmvl4q0iya382qIsjlZQCmNl.ASk_m4xFteZoKijEph156g__fXPMeUyby89.9ipTPgBBSSLBEZ3MVTT9TWvhIDigWaTHHCFNrtJW1XoZIF_z6MPAkEP2.2lH05QhGmo_YdH2g.bgZr7VjIylGk5uFU6ATq1XKrUY5fURjUvS1MgDCCeBXEjbQAJrlEs6Ysmaid08SSEnG4J3j9Bn6kdqcL5xxOGHzfadL5iZc6aJOAldAlK5Rhz2jqlZWuJYoZjkVnGfMpPewtol4Rpp8OHzkzWMOqEN19F6R4AhOlWFT3HHiLIHz01RP7tMSaJwcDVGwBk17O3h2nJAmiYoZN0gSuFW.KqYm48D1h9b_mvR2GK.BrAOhM6FbA9ni0fiyg_bSV3eMqVcH2YJP7kezRb5dLNceXGPXkje0KoWQqtqExshfkVTRQAsnAGMwdFNMn0A4RxsDvNq2EhCotmbFeF555HIHob8KziORUXISZlLeK6TXdMWlK_xiGKU2y3zd1Jto5d8TfwYnAg8w7xwWXbkn3S2BL2xviyigHoE3geB1URvfjbtOm14OtV1JQ3JC0RH6JjtHXvCvQ0zx4KdvtTwRTMzvFXkv5nwnWxfzBuFmkt2HFPCqwo1OgFpdVD3OEV9waq5FIuMCWXj5kg8pMRuq35iAicwNa4No6MuMYdLefipheeIGBjyzafTGPqSDSmUJLQMoHm3.E1Fia26xi0s_YBsQczoLt9LBVF3SaIoWjEp_qCHA9wHwIleb48TtMHWtq5Yzxk.edSZYa4l1xRmB4tdxyv0RCl_mqeCaOT50lyPBL6ilYXQICqBf0f_btI_cSnRUbHsPwCAMfIZDq0dv2lXZZJTFyit.1K8d3b5ONEy5353giw6NXD5X9dXD96qEPWeRKtxlvSY0VafZKZpP3dETflRzvdfUlLspqM52q2xFqzLCOz.WusNXclYnkx9Vx2NonJx.2wdbucBx5i4yKNaMmFVnGf7sY7D6GLaxydmbqQQpVi_Trj0dLkIQ9G1vgN0ephUF..MigCeWS_4vY3TyvlUV80_ufRQHFYvYhA67TPAjQafRXIG.TQHSjHKP7ucdgjFfxCDAdwJJQIu2Hu.ERTcny3p3.KwZ8dt9Tenf4DIvJGGpmPo1QZHpCk2fjTdu4QfnyiVCgx1oqqnJCj2m7raCZNCTZOlNFduycbhYl_liH9GMgkKIjRshI0U6BzoTuEzk_mPCFMOXLx.Fd1wvzlH0so7UmyAWX8C5MbQytGBMOElnlQ5ze3U14FQOkkdZM.dxBkgM4GCBikilMkePSitHqblU4Wf3HStoqJaByrIl_0Tq8rwX6UMOgBYu9C9GKQtTcG_pe1P8WsyLSD.Eomd6mQNBsTptnjmUdy.AgEU32O2ATXtKT3DuIqlIZuAecI43u_J3WR8BkUPb4kO8j9LFPf9oc74UPNm5fDWR4RlPXgnA4Jwp5ONpSjub0JKJ89Tsf736yQprqR3SQYwQPFN38_pF..DO7YMXx2VbmTf46sylHV94uT435VZ7w7L4tLpBjBKvbpjSnNnsMKWBmM5htuatCgXlOMjCbNV_NBiO6Vmj5_Xp4yjQN1tjFB2PqV.ssyY_NledjlWA.FZAQmQ.OR0rGzxFiHyrPa8lX39eKHIlaIGBhwRgjcp9T6FJZUPQULroEcU5ke5s2waHdPXr6Q3RvjeGb2RknnGef3S2lVf2dGEwLlv4NuC.gd2x.UTESwiCJCqosT2n_OsqsUwgEfcju7Ke6SFqcLGRaVzFNL7jxUVFLtFQl50M7CCbl93EjuIDOQeBiyKRBDP0BFmrvDPAsyKmdbHZpUH8S27H9JmbLbdQTokbQs8VLKOjyiaIEHi9evUTWH_578xb_f_dMzHX6Jq7Las8LLGZkD0TmytqNhNAFTcR._0vXjYhRPGwCUqVQb7ySTs5HzDPji81I4ZqvFQJGNpz4aRfGe2zHMDW.ozXeS0vTkc2ravXdZDPZxeCUVuqViW2p0FK1NUmvJLU5579uTEnExcK9kCzN9WSwhDsp_5BSznSeqP42F8zNcoFnXuCaHBr2gi6z2GLEiKTMr8ToVgldlfhbMe_T1xLQLJI3s0pM4O3zLtKQpsiMdAb7X4FL1PMtH6JjAjAAs72ZCfzCAi7SsbEEcrVMQY_JtMP9dfQoBGN0ENqYKzU6Jo.vBh2_BtNv9O23zPFNDEsqPkziJLSRDD9Z0joxQ9ZN0O.0iiG64w9hI2df8rqNB655kYL2cYevFmby_9VAktb5agKPxwTRKKbFEziE4djeIFzSq.3v3OohtDJUyTHs3Jw05bAuQWMM0ZQEsR_W3XcGz1eSohxzyzmuzJ.yHnDdecvP2PDDj0FF6uI4ah1i",mdrd: "6jV_uEE8tyIYrmQP85e72VkV8I545HA3h20E.y6T3z4-1732352659-1.2.1.1-lGLZ86ygmKLYU6CGOwn6OVi0aVS1peXK1wEVUpW99yzMn9V.5fMXn6B2iaMDmHwYdyc2jIqPTHTCX.2eAS5CiKFjaTeiyDQyeF6IeL3389liCH.FKmjRBpIwBOgqMyufutIAqxNzB6HCrnL2XrrnbasaCTi6d6lU6q_2EuUcBpfYwwyRWXGsBJ_t83ysleVXvUA6MgdoWFkwH6kL3jkVVJFQpBwkvrOtXiIXPX4KN5SQ9HScUzstaRNIXsy1DzPGShxI7Jt5Pnmi2jiMcyFUo6ktoCXzuNMWH_PjTZUky49e3yrIKxhSD2qFhTkQ0FyyvfJVZPM4cGkcnXEFRhVGf52w3zr44VNUhpYppaYSuoYCDq59YjgKuuye5qHH7DWnoSQNTMYxMlxziNrZTWwNOPxqe1dKjS1din4OhDpJrd.Cr3Q8Q9zulUnTWaYyPlCqaPxPC8FS6vhUfTiBW8gFwyn3V6aVjJLrsrPmIURZVVVj5.BP1EtlPer066dgqvd49.uuNsecK14HTUUOOScL53qTw4GQVwgumRyX4zYRqdsZj12d6qIHRfB4ykr7N.2u48GPg_wD..wJZAB8VHG8XKsvSsm2sh6CTYuRwu33AbsW0SnQazPmw40Pjkyqk8Zc7aTb6SXCeTVwpf5NDBDFVAi4GbBEDky43ILzjyrt.pY4X_Tu0bBFhguUJmi6fpN4V2b0R6oFvpJTN1Wcdr46Q_urS8PQuM4eUZLiUL5PkbSBCW666dBnKxOP5jdlGbFikeWDMF1VaVcwmSve7D9dPO639gb5iIliMOdasAfL6gSQ3QZ_TeCwoplaonMMIWwqrJgWFvr5AuiuN6WT.xBkI0N6Q8jvUhWtuXpbU21HX9j.D0eE56V_c8e6RfjwUevFKX6VJd5jI1eBgZvRrv_AXeBgnJPgpf6ACoxt_H7lF_i8XsVtUSartlq1xlhDdAiTKxT8dQKfA3Fbrm69H.1QhOP3T1ORx.bmaGnpyulu1nqsa5bKo5EjBJWFwzgUCjJMkD87bbYGZx2FYQrprV.29h0DEn551PVmi0W3mJf30HN5jOaldA8o03K4YQR8di9W3nQ7h8h7HqDae24nTWfbLQTG7hxzcVQ4T2Bc5P7mE6urYZ9M5MvbCrMvQ4IZSaDiH0_5o_sIPOr1PWOiOckwXkLWDiWb5By_nM_gUVSAKU_5T0sQ86sA3tnVsF66JqTmeTAt_eN5UWNVUghvVLJvoCL2TFtMGO6vZczRX1502dpvHKb_2C5wVh6r2PS62coH4KYyfEle8nwDYsUI7f5zXfAQ7nTt8bRL.yOU6fsaYD0fVdnFYv8S1l2zLzu9fWG_BrEVRMPb.vwfBIDicMot.vfzWAqzyjZo8FTD4k88DL3zlBsoPsxZT3cFqayuydNddErfPrInUZU4hw6Q3_IYk.aDltaxUtOP6dEr6gGO_3Q_PS51TKbg5udtSfj1UBmnWStPYTX7UWvXiwqEtUdVQ5DI0z6n3wdgPiwhnE4uCUWggfU.3xI.h8Rakcnn1SdwhwayWFzPuLLFCgGvdkDH1bpdbcgVNBJScMCkA2FZJWmxwKWxDQ2924Y9KMBHXZoIchoIVD7TVvSu6mvuNAwiMmea8IQRu8LzrPStPHLPlukST7VhCmaKNUlSkXhy8GaWsyWFwegykifkIDBf..ztgTPG2KG7uTwz6vgQwSVG5J0m3ni1RzQ14LIRC7lCDP4QgGwH.l73dxdyj_yS.uV7VZ9dVExrB3WK0Fi6O1_pEGAjO.9bz3Wf4W3ga80fwjz2Vfv3vevTQ9WWcgScVV7Q_YnawuO2Ly418kN6N813e4Xw3PHThwVkbVxn7DnQNk5_IzS1OWv4O.0VVOu.jIogGgpcRsfXiTk9zj.o_52atqoafDu2oYXdV12ormtxJqMMwoeA6IjG8GxY1C8v3ZuEDQtrjD73tiChr98s8qgVlfNSehEs0A.el9m4xXFLtUez_COrITj68FquLbw5xeX3DA"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=8e6ffdb738db7975';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/doi\/abs\/10.1080\/21693277.2013.858377?__cf_chl_rt_tk=g9PqwQ0kyYZn3KflrpwqZKeWB8u0mmD31jx0tuGxl_0-1732352659-1.0.1.1-v4q2cf2rokEhSp6lqCVuQTE8ANWR9okeP.CfP5_10RE" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>