{"id":8124,"date":"2021-09-09T08:55:30","date_gmt":"2021-09-09T06:55:30","guid":{"rendered":"https:\/\/ensai.fr\/?p=8124"},"modified":"2021-09-09T08:55:30","modified_gmt":"2021-09-09T06:55:30","slug":"yutec-sun-american-economic-review","status":"publish","type":"post","link":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/","title":{"rendered":"A Paper by Yutec Sun published in the American Economic Review"},"content":{"rendered":"<p><strong>\u201cMarket Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile Telecommunications Market\u201d, a paper co-authored by <a href=\"https:\/\/ensai.fr\/en\/equipe\/yutec-sun\/\">Yutec Sun<\/a>, Assistant Professor of Economics at ENSAI and researcher at CREST, Marc Bourreau and Frank Verboven will be published in the forthcoming <a href=\"https:\/\/www.aeaweb.org\/journals\/aer\" target=\"_blank\" rel=\"noopener\">AER<\/a>.\u00a0\u00a0<\/strong><\/p>\n<p>The American Economic Review is a general-interest economics journal. Established in 1911, the AER is considered as one of the Top 5 economics journals in the world.<\/p>\n<blockquote><p>\u201cFighting brands have long been taught in marketing and economics as an incumbent firm\u2019s strategy to weaken the challenge of entrants with low price offerings. A few years ago, we faced a dilemma when analyzing the French mobile market, because the existing perspective could not explain why the recent entry propelled the major incumbent networks to engage in the fighting brand war with each other. Our main contribution lies in offering a novel insight on fighting brands supported by innovative data analysis method\u201d, says Yutec Sun.<\/p><\/blockquote>\n<h3>Abstract<\/h3>\n<p>We study a major new entry in the French mobile telecommunications market, followed by the introduction of fighting brands by the three incumbents. Using an empirical oligopoly model, we find that the incumbents\u2019 fighting brand strategies are difficult to rationalize as unilateral best responses. Instead, their strategies are consistent with a breakdown of tacit semi-collusion: before entry, the incumbents could successfully coordinate on restricting product variety to avoid cannibalization; after entry, this outcome became harder to sustain because of increased business stealing incentives. Consumers gained considerably from the added variety and, to a lesser extent, from the incumbents\u2019 price responses.<\/p>\n<h3>Authors<\/h3>\n<p><a href=\"http:\/\/ses-perso.telecom-paristech.fr\/bourreau\/\" target=\"_blank\" rel=\"noopener\">Marc Bourreau<\/a>: Professor of Economics at Telecom Paris, academic co-director of the CERRE, and a member of DGComp\u2019s EAGCP<\/p>\n<p><a href=\"https:\/\/sites.google.com\/site\/yutecsun\/\" target=\"_blank\" rel=\"noopener\">Yutec Sun<\/a>: Assistant Professor of Economics, CREST-ENSAI<\/p>\n<p><a href=\"https:\/\/sites.google.com\/site\/frankverbo\/\">Franck Verboven<\/a>: Professor of Economics at KU Leuven, Managing Editor of IJIO, Member of IO @ Leuven, Research Fellow at CEPR<\/p>\n<p>&nbsp;<\/p>\n<p><span class=\"hentry_link_contour\"><a href=\"https:\/\/www.aeaweb.org\/articles?id=10.1257\/aer.20190540&amp;&amp;from=f\" target=\"_blank\" rel=\"noopener noreferrer\">Preview of the forthcoming articles<\/a><\/span><\/p>\n<p><em><strong>Find out more about <a href=\"https:\/\/sites.google.com\/site\/yutecsun\" target=\"_blank\" rel=\"noopener\">Yutec Sun<\/a> and <a href=\"https:\/\/ensai.fr\/en\/recherche\/themes-de-recherche\/\">research at ENSAI<\/a>.<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u201cMarket Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile&#8230; <br \/><a class=\"readmore\" href=\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/\">Lire la suite<\/a><\/p>\n","protected":false},"author":73,"featured_media":8131,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[185],"tags":[455,342],"class_list":["post-8124","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research-innovation","tag-economics","tag-publication"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A Paper by Yutec Sun published in the American Economic Review | ENSAI<\/title>\n<meta name=\"description\" content=\"\u201cMarket Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile Telecommunications Market\u201d, a paper co-authored by Yutec Sun, Assistant Professor of Economics at ENSAI and researcher at CREST, Marc Bourreau and Frank Verboven will be published in the forthcoming AER.\u00a0\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A Paper by Yutec Sun published in the American Economic Review | ENSAI\" \/>\n<meta property=\"og:description\" content=\"\u201cMarket Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile Telecommunications Market\u201d, a paper co-authored by Yutec Sun, Assistant Professor of Economics at ENSAI and researcher at CREST, Marc Bourreau and Frank Verboven will be published in the forthcoming AER.\u00a0\u00a0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/\" \/>\n<meta property=\"og:site_name\" content=\"ENSAI\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Ensai35\/\" \/>\n<meta property=\"article:published_time\" content=\"2021-09-09T06:55:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"720\" \/>\n\t<meta property=\"og:image:height\" content=\"421\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Flore Ithor\u00e9-Tilly\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Flore Ithor\u00e9-Tilly\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/\"},\"author\":{\"name\":\"Flore Ithor\u00e9-Tilly\",\"@id\":\"https:\/\/ensai.fr\/#\/schema\/person\/c9cdfe8987c29837993d1a90c7e951d1\"},\"headline\":\"A Paper by Yutec Sun published in the American Economic Review\",\"datePublished\":\"2021-09-09T06:55:30+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/\"},\"wordCount\":330,\"publisher\":{\"@id\":\"https:\/\/ensai.fr\/#organization\"},\"image\":{\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png\",\"keywords\":[\"economics\",\"publication\"],\"articleSection\":[\"Research &amp; Innovation\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/\",\"url\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/\",\"name\":\"A Paper by Yutec Sun published in the American Economic Review | ENSAI\",\"isPartOf\":{\"@id\":\"https:\/\/ensai.fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png\",\"datePublished\":\"2021-09-09T06:55:30+00:00\",\"description\":\"\u201cMarket Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile Telecommunications Market\u201d, a paper co-authored by Yutec Sun, Assistant Professor of Economics at ENSAI and researcher at CREST, Marc Bourreau and Frank Verboven will be published in the forthcoming AER.\u00a0\u00a0\",\"breadcrumb\":{\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#primaryimage\",\"url\":\"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png\",\"contentUrl\":\"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png\",\"width\":720,\"height\":421,\"caption\":\"yutec sun aer\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/ensai.fr\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"A Paper by Yutec Sun published in the American Economic Review\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/ensai.fr\/#website\",\"url\":\"https:\/\/ensai.fr\/\",\"name\":\"ENSAI\",\"description\":\"La Science des Donn\u00e9es\",\"publisher\":{\"@id\":\"https:\/\/ensai.fr\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/ensai.fr\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/ensai.fr\/#organization\",\"name\":\"ENSAI\",\"url\":\"https:\/\/ensai.fr\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/ensai.fr\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/ensai.fr\/wp-content\/uploads\/2019\/05\/Ensai-logo.png\",\"contentUrl\":\"https:\/\/ensai.fr\/wp-content\/uploads\/2019\/05\/Ensai-logo.png\",\"width\":493,\"height\":463,\"caption\":\"ENSAI\"},\"image\":{\"@id\":\"https:\/\/ensai.fr\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/Ensai35\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/ensai.fr\/#\/schema\/person\/c9cdfe8987c29837993d1a90c7e951d1\",\"name\":\"Flore Ithor\u00e9-Tilly\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/ensai.fr\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/f86ed95b523ba36d583949e04974eedc813967e510ad55e33cd993c04c1e0a14?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/f86ed95b523ba36d583949e04974eedc813967e510ad55e33cd993c04c1e0a14?s=96&d=mm&r=g\",\"caption\":\"Flore Ithor\u00e9-Tilly\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"A Paper by Yutec Sun published in the American Economic Review | ENSAI","description":"\u201cMarket Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile Telecommunications Market\u201d, a paper co-authored by Yutec Sun, Assistant Professor of Economics at ENSAI and researcher at CREST, Marc Bourreau and Frank Verboven will be published in the forthcoming AER.\u00a0\u00a0","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/","og_locale":"en_US","og_type":"article","og_title":"A Paper by Yutec Sun published in the American Economic Review | ENSAI","og_description":"\u201cMarket Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile Telecommunications Market\u201d, a paper co-authored by Yutec Sun, Assistant Professor of Economics at ENSAI and researcher at CREST, Marc Bourreau and Frank Verboven will be published in the forthcoming AER.\u00a0\u00a0","og_url":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/","og_site_name":"ENSAI","article_publisher":"https:\/\/www.facebook.com\/Ensai35\/","article_published_time":"2021-09-09T06:55:30+00:00","og_image":[{"width":720,"height":421,"url":"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png","type":"image\/png"}],"author":"Flore Ithor\u00e9-Tilly","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Flore Ithor\u00e9-Tilly","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#article","isPartOf":{"@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/"},"author":{"name":"Flore Ithor\u00e9-Tilly","@id":"https:\/\/ensai.fr\/#\/schema\/person\/c9cdfe8987c29837993d1a90c7e951d1"},"headline":"A Paper by Yutec Sun published in the American Economic Review","datePublished":"2021-09-09T06:55:30+00:00","mainEntityOfPage":{"@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/"},"wordCount":330,"publisher":{"@id":"https:\/\/ensai.fr\/#organization"},"image":{"@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#primaryimage"},"thumbnailUrl":"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png","keywords":["economics","publication"],"articleSection":["Research &amp; Innovation"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/","url":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/","name":"A Paper by Yutec Sun published in the American Economic Review | ENSAI","isPartOf":{"@id":"https:\/\/ensai.fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#primaryimage"},"image":{"@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#primaryimage"},"thumbnailUrl":"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png","datePublished":"2021-09-09T06:55:30+00:00","description":"\u201cMarket Entry, Fighting Brands and Tacit Collusion: Evidence from the French Mobile Telecommunications Market\u201d, a paper co-authored by Yutec Sun, Assistant Professor of Economics at ENSAI and researcher at CREST, Marc Bourreau and Frank Verboven will be published in the forthcoming AER.\u00a0\u00a0","breadcrumb":{"@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#primaryimage","url":"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png","contentUrl":"https:\/\/ensai.fr\/wp-content\/uploads\/2021\/09\/yutec-sun-aer-1.png","width":720,"height":421,"caption":"yutec sun aer"},{"@type":"BreadcrumbList","@id":"https:\/\/ensai.fr\/en\/yutec-sun-american-economic-review\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/ensai.fr\/en\/"},{"@type":"ListItem","position":2,"name":"A Paper by Yutec Sun published in the American Economic Review"}]},{"@type":"WebSite","@id":"https:\/\/ensai.fr\/#website","url":"https:\/\/ensai.fr\/","name":"ENSAI","description":"La Science des Donn\u00e9es","publisher":{"@id":"https:\/\/ensai.fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/ensai.fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/ensai.fr\/#organization","name":"ENSAI","url":"https:\/\/ensai.fr\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ensai.fr\/#\/schema\/logo\/image\/","url":"https:\/\/ensai.fr\/wp-content\/uploads\/2019\/05\/Ensai-logo.png","contentUrl":"https:\/\/ensai.fr\/wp-content\/uploads\/2019\/05\/Ensai-logo.png","width":493,"height":463,"caption":"ENSAI"},"image":{"@id":"https:\/\/ensai.fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/Ensai35\/"]},{"@type":"Person","@id":"https:\/\/ensai.fr\/#\/schema\/person\/c9cdfe8987c29837993d1a90c7e951d1","name":"Flore Ithor\u00e9-Tilly","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ensai.fr\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/f86ed95b523ba36d583949e04974eedc813967e510ad55e33cd993c04c1e0a14?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/f86ed95b523ba36d583949e04974eedc813967e510ad55e33cd993c04c1e0a14?s=96&d=mm&r=g","caption":"Flore Ithor\u00e9-Tilly"}}]}},"_links":{"self":[{"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/posts\/8124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/comments?post=8124"}],"version-history":[{"count":3,"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/posts\/8124\/revisions"}],"predecessor-version":[{"id":8133,"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/posts\/8124\/revisions\/8133"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/media\/8131"}],"wp:attachment":[{"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/media?parent=8124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/categories?post=8124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ensai.fr\/en\/wp-json\/wp\/v2\/tags?post=8124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}