{"id":15387,"date":"2025-10-27T15:27:02","date_gmt":"2025-10-27T06:27:02","guid":{"rendered":"https:\/\/www.iir.hit-u.ac.jp\/en\/?p=15387"},"modified":"2026-10-07T15:47:28","modified_gmt":"2026-10-07T06:47:28","slug":"results-20261007-4","status":"publish","type":"post","link":"https:\/\/www.iir.hit-u.ac.jp\/en\/2025\/10\/27\/results-20261007-4\/","title":{"rendered":"\u3010Kentaro Nakajima\u3011The Economics of Spatial Mobility: Theory and Evidence Using Smartphone Data"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"15387\" class=\"elementor elementor-15387\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bc73fa7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bc73fa7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b565408\" data-id=\"b565408\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-455b9f0 elementor-widget elementor-widget-text-editor\" data-id=\"455b9f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: #ff0000;\">\u25b6<\/span><span style=\"color: #000000;\"><strong>Category\uff1a<\/strong><\/span> Article<\/p><p><span style=\"color: #ff0000;\">\u25b6<span style=\"color: #000000;\"><strong>Author<\/strong><\/span><\/span><span style=\"color: #000000;\"><strong>\uff1a<\/strong>Miyauchi, Yuhei\uff1aKentaro Nakajima\uff1aStephen J Redding<br \/><\/span><br \/><span style=\"color: #ff0000;\">\u25b6<\/span><span style=\"color: #000000;\"><strong>Institution\uff1a<\/strong>Quarterly Journal of Economics<\/span><\/p><p><span style=\"color: #000000;\"><span style=\"color: #ff0000;\">\u25b6<\/span><\/span><strong>Volume<\/strong><span style=\"color: #000000;\"><strong>\uff1a<\/strong>Vol.140<br \/><\/span><br \/><span style=\"color: #ff0000;\">\u25b6<\/span><strong>Number\uff1a<\/strong>Issue 4<\/p><p><span style=\"color: #ff0000;\">\u25b6<\/span><strong>Page\uff1a<\/strong>pp.2507-2570<\/p><p><span style=\"color: #000000;\"><strong><span style=\"color: #ff0000;\">\u25b6<\/span><\/strong><\/span><span style=\"color: #000000;\"><strong>Date\uff1a<\/strong>2025\/11\/01<\/span><\/p><p><span style=\"color: #ff0000;\">\u25b6<strong><span style=\"color: #000000;\">Article Title<\/span><\/strong><\/span><strong>\uff1a<\/strong>The Economics of Spatial Mobility: Theory and Evidence Using Smartphone Data<br \/><br \/><strong><span style=\"color: #ff0000;\">\u25b6<\/span>Abstract\uff1a<\/strong>We develop a tractable quantitative framework for modeling the rich patterns of spatial mobility observed in smartphone data. We show that travel is frequently undertaken as part of a travel itinerary, defined as a journey starting and ending at home that can include more than one intermediate stop on a given day. We show that these travel itineraries provide microfoundations for consumption externalities and generate both complementarity and substitutability between locations. We show that the consumption externalities implied by travel itineraries are central to matching quasi-experimental evidence from the shift to working from home. We find that these consumption externalities are key drivers of the agglomeration of economic activity in central cities and shape the relative welfare gains from alternative transport improvements in favor of investments in central cities.<br \/><strong><br \/><span style=\"color: #ff0000;\">\u25b6<\/span>Notes\uff1a<\/strong><\/p><p><span style=\"color: #ff0000;\">\u25b6<\/span><strong>URL\uff1a<\/strong><a href=\"https:\/\/academic.oup.com\/qje\/article\/140\/4\/2507\/8228485\"><span style=\"color: #3366ff;\">https:\/\/academic.oup.com\/qje\/article\/140\/4\/2507\/8228485<\/span><\/a><\/p><p><strong><span style=\"color: #ff0000;\">\u25b6<\/span>Register date\uff1a<\/strong>2025\/10\/27<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>\u25b6Category\uff1a Article \u25b6Author\uff1aMiyauchi, Yuhei\uff1aKentaro Nakajima\uff1aStephen J Redding \u25b6Institution\uff1aQuarterly Journal of Economics \u25b6Volume\uff1aVol.140 \u25b6Number\uff1aIssue 4 \u25b6Page\uff1app.2507-2570 \u25b6Date\uff1a2025\/11\/01 \u25b6Article Title\uff1aThe Economics of Spatial Mobility: Theory and Evidence Using Smartphone Data \u25b6Abstract\uff1aWe develop a tractable quantitative framework for modeling the rich patterns of spatial mobility observed in smartphone data. We show that travel is frequently undertaken as part of a travel itinerary, defined as a journey starting and ending at home that can include more than one intermediate stop on a given day. We show that these travel itineraries provide microfoundations for consumption externalities and generate both complementarity and substitutability between locations. We show that the consumption externalities implied by travel itineraries are&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"sns_share_botton_hide":"","vkExUnit_sns_title":"","_vk_print_noindex":"","sitemap_hide":"","_veu_custom_css":"","veu_display_promotion_alert":"common","vkexunit_cta_each_option":"","footnotes":""},"categories":[62,61],"tags":[],"class_list":["post-15387","post","type-post","status-publish","format-standard","hentry","category-article","category-results"],"veu_head_title_object":{"title":"","add_site_title":""},"_links":{"self":[{"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/posts\/15387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/comments?post=15387"}],"version-history":[{"count":5,"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/posts\/15387\/revisions"}],"predecessor-version":[{"id":15418,"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/posts\/15387\/revisions\/15418"}],"wp:attachment":[{"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/media?parent=15387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/categories?post=15387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iir.hit-u.ac.jp\/en\/wp-json\/wp\/v2\/tags?post=15387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}