{"id":27473,"date":"2025-06-19T23:10:14","date_gmt":"2025-06-19T23:10:14","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=27473"},"modified":"2025-06-19T23:10:16","modified_gmt":"2025-06-19T23:10:16","slug":"the-paradox-of-the-bertrand-oligopoly-with-only-2-firms-the-equilibrium-outcome-is-the-same-as","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/the-paradox-of-the-bertrand-oligopoly-with-only-2-firms-the-equilibrium-outcome-is-the-same-as\/","title":{"rendered":"The paradox of the Bertrand Oligopoly with only 2-firms the equilibrium outcome is the same as"},"content":{"rendered":"\n<p>The paradox of the Bertrand Oligopoly with only 2-firms the equilibrium outcome is the same as a) monopolistic competition. b) monopoly c) tacit collusion d) perfect competition e) Cournot oligopoly<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n<p><strong>Correct Answer: d) perfect competition<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation (300 words):<\/h3>\n\n\n\n<p>The <strong>Bertrand paradox<\/strong> arises in the context of <strong>Bertrand oligopoly<\/strong>, where two or more firms compete by <strong>setting prices<\/strong> rather than quantities (as in Cournot competition). In the classic Bertrand model, the firms sell <strong>homogeneous products<\/strong>, have <strong>identical constant marginal costs<\/strong>, and <strong>simultaneously choose prices<\/strong>.<\/p>\n\n\n\n<p>Here\u2019s the surprising outcome: Even though there are only <strong>two firms<\/strong>, the <strong>Nash equilibrium<\/strong> of the game is that <strong>both firms set price equal to marginal cost<\/strong>\u2014the same outcome as in <strong>perfect competition<\/strong>. This occurs because if one firm sets a higher price than the other, consumers will buy exclusively from the lower-priced firm. Hence, each firm has a strong incentive to <strong>undercut<\/strong> its rival by a small amount to capture the whole market. This price-cutting continues until <strong>price equals marginal cost<\/strong>, at which point no firm can profitably lower the price further.<\/p>\n\n\n\n<p>This is counterintuitive because we usually associate a market with only two firms as being <strong>imperfectly competitive<\/strong>, possibly resembling a <strong>duopoly<\/strong> or a <strong>monopoly-like<\/strong> structure. However, the Bertrand model shows that <strong>price competition<\/strong> between just two firms can drive prices down to the perfectly competitive level if the assumptions hold.<\/p>\n\n\n\n<p>Let\u2019s consider the other options:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>a) Monopolistic competition<\/strong>: Involves product differentiation and firms have some price-setting power\u2014prices are <strong>above<\/strong> marginal cost in equilibrium.<\/li>\n\n\n\n<li><strong>b) Monopoly<\/strong>: A single firm sets price above marginal cost for profit maximization\u2014not the case here.<\/li>\n\n\n\n<li><strong>c) Tacit collusion<\/strong>: Involves firms cooperating implicitly to keep prices high, opposite of Bertrand behavior.<\/li>\n\n\n\n<li><strong>e) Cournot oligopoly<\/strong>: Firms compete in <strong>quantities<\/strong>, and the equilibrium price is typically <strong>above marginal cost<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Therefore, the Bertrand paradox shows that <strong>even with just two firms<\/strong>, intense <strong>price competition<\/strong> can yield an equilibrium <strong>identical to perfect competition<\/strong>: <strong>price = marginal cost<\/strong>, zero economic profit.<\/p>\n\n\n\n<p><strong>Answer: d) perfect competition<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The paradox of the Bertrand Oligopoly with only 2-firms the equilibrium outcome is the same as a) monopolistic competition. b) monopoly c) tacit collusion d) perfect competition e) Cournot oligopoly The correct answer and explanation is: Correct Answer: d) perfect competition Explanation (300 words): The Bertrand paradox arises in the context of Bertrand oligopoly, where [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-27473","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/27473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=27473"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/27473\/revisions"}],"predecessor-version":[{"id":27474,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/27473\/revisions\/27474"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=27473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=27473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=27473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}