Antitrust & Competition Policy Blog

Editor: D. Daniel Sokol
University of Florida
Levin College of Law

Thursday, August 1, 2013

Stable Commitment in an Intertemporal Collusive Trade

Posted by D. Daniel Sokol

Romeo Balanquit (School of Economics, University of the Philippines Diliman) address Stable Commitment in an Intertemporal Collusive Trade.

ABSTRACT: This study presents a more general collusive mechanism that is sustainable in an oligopolistic repeated game. In this setup, firms can obtain average payoffs beyond the cooperative profits while at the same time improve consumer welfare through a lower market price offer. In particular, we introduce here the notion of intertemporal collusive trade where each oligopolist, apart from regularly producing the normal cooperative output, is also allowed in a systematic way to earn higher than the rest at some stages of the game. This admits subgame- perfection and is shown under some conditions to be Pareto-superior to the typical cooperative outcome.

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