Competition policy is a subject of heated debate. Antitrust authorities, seeking to battle anticompetitive behavior in complex cases to the best of their abilities, often find themselves advised by rival economic theories and disputed empirical analyses. As a consequence, there is a real...

We examine antitrust rules in a two county general equilibrium trade model, contrasting national and multilateral (cooperative) determination of competition policy, exploring the properties of the policy equilibrium. It is not imperfect competition, but variation in competitive stance between...