This paper analyzes a game of trade policy (called Bilateralism) between three countries in which each country chooses whether to liberalize trade preferentially in the form of a Customs Union (CU), multilaterally, or not at all. We also analyze a restricted version of this game (called...

In a three country model with endogenous tariffs, this paper evaluates and contrasts the welfare effects of free trade agreements (FTAs) and customs unions (CUs) — the two most commonly occurring preferential trade agreements (PTAs). We show that if the external tariff of a PTA is not too...