Of Course Collusion Should Be Prosecuted. But Maybe… Or (the Case for International Antitrust Agreements)

Posted by Social Science Research Network

Of Course Collusion Should Be Prosecuted. But Maybe… Or (the Case for International Antitrust Agreements)

By Filomena Garcia, Jose Manuel Paz y Miño, Gustavo Torrens (Indiana University)

Abstract:     We study the incentives of competition authorities to prosecute collusive practices of domestic and foreign firms. For that purpose, we develop a model of multi-market contact between two firms that can engage in collusion in two countries. In each country, there is a competition authority with a mandate to maximize national welfare. Each competition authority decides its prosecution policy at the beginning of time and commits to it. In equilibrium, the ownership distribution of the firms (domestic versus foreign) affects prosecution policies. The country that does not own the firms prosecutes them as soon as information of collusion becomes available. On the contrary, the country that owns the firms has an incentive to protect their profits in foreign markets delaying prosecution. This strategic delay is valuable because it contains the information spreading that could trigger prosecution in the foreign country. Prosecution delays, however, are not optimal from the point of view of global welfare, something that could be solved through the integration of the competition authorities. The country of origin of the firms would nevertheless oppose integration. Finally, in a multi-industry setting, both countries delay prosecuting …

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