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Academic Articles Awards > Economics

Econometric Evidence to Target Tacit Collusion in Oligopolistic Markets

Patrick Andreoli-Versbach and Jens-Uwe Franck, Journal of Competition Law and Economics, 11: 463 - 492, June 2015

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Readers’ vote will close on February 15, 2016. Readers’ vote will allow you to nominate 1 article for each of the Awards, i.e., 10 Academic articles, 10 Business articles, and the best Soft Laws. The readers’ short-list of Academic and Business Articles will be communicated to the Board together with the 20 articles nominated by the Steering Committees. The Board will decide on the award-winning articles. Results will be announced at the Awards ceremony to take place in Washington DC on the eve of the ABA Antitrust Spring Meeting on April 5, 2016.

Tacit collusion may reduce welfare comparably to explicit collusion, but it remains mostly unaddressed by antitrust enforcement that greatly depends on evidence of explicit communication. We propose to target specific elements of firms’ behavior that facilitate tacit collusion by providing quantitative evidence that links these actions to an anticompetitive market outcome. We apply our approach to incidents on the Italian gasoline market, where the market leader unilaterally announced its commitment to a policy of sticky pricing and large price changes that facilitated price alignment and coordination of price changes. Antitrust policy must distinguish such active promotion of a collusive strategy from passive, best-response, alignment. Our results imply the necessity of stronger legal instruments that target unilateral conduct that aims at bringing about collusion.

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