As a part of their industry or competition policies governments decide whether to allow for free market entry of firms or to regulate market access. We analyze a model where governments (ab)use these policy decisions for strategic reasons in an international setting. Multiple equilibria of this...

Alternative perspectives on the structure of international trade have important implications for the evaluation of climate policy. In this paper we assess climate policy in the context of three important alternative trade formulations. First is a Heckscher-Ohlin model based on trade in...

We study the gains from trade in an economy with oligopolistic competition, firm heterogeneity, and innovation. Oligopolistic competition together with free entry make markups responsive to firm productivity and trade costs. Lowering trade costs reduces markups on domestic sales but increases...