Analysis Group (Paris)

Antoine Chapsal

Analysis Group (Paris)
Managing Principal

Antoine Chapsal specializes in empirical and theoretical industrial organization. He has provided economic expertise in a large number of high-profile cases involving mergers, abuses of dominant positions, cartels, information exchanges, regulation, and damage quantification. Recent examples include the Lafarge/Holcim and Fnac/Darty mergers, as well as airfreight, cathode ray tube, and elevator cartel cases. Antoine Chapsal has also assisted various firms in designing optimized pricing strategies and contracts that comply with competition rules. Previously, he worked at the French Ministry of Economy, where he took part in the drafting of the horizontal merger guidelines, and in an American competition economics consultancy where he contributed to the analysis of major antitrust and merger cases. He regularly publishes articles on competition economics, on subjects ranging from the econometric analysis of cartels to geographic market delineation and exclusionary strategies. He is an affiliated professor at the Sciences Po department of economics and a member of the CESifo academic research network.


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Antoine Chapsal (Analysis Group)
Antoine Chapsal 6 March 2018 Paris


10663 Bulletin

13430 Review

Aaron Fix, Antoine Chapsal, Claudio Calcagno, Emily Cotton, Joshua White, Nikita Piankov Online and Offline Retailer Competition: New challenges for Competition Economists and Practitioners


In this On-Topic we explore a number of competition issues that arise at the intersection of online and offline retail distribution. We first provide a brief overview of the effects of online distribution and the associated potential challenges for competition policy. In the first paper, we (...)

Antoine Chapsal, Laurent Eymard Remarks on the calculation of local market shares


The method usually applied to compute local market shares is severely flawed. Once the relevant geographic market has been defined, it consists in computing the ratio between the total value of sales by all plants or stores of the firm located in the relevant market over the total value of (...)



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