Until NAFTA, analyses of preferential trading arrangements began by assuming a customs union with a common external tariff, and the differences between customs unions and free trade agreements (FTAs) have been little analyzed. This paper points to some of the differences between FTAs and customs...

This paper examines the welfare effects of the formation of a free-trade area (a set of countries that abolish tariffs among member countries but let individual member countries to set external tariffs). If a representative consumer has love-of-variety preferences, the welfare function exhibits...

When trade policy is endogenously determined by lobbying, it matters whether countries are arranged into a customs union or a free trade area. This paper compares the two regimes when the member governments are asymmetric in their susceptibilities to lobbying and in their bargaining power within...

This paper examines various implications of Preferential Trade Agreements (PTAs), namely Customs Unions (CUs) and Free Trade Areas (FTAs), in the context of a multi-country general equilibrium model based on comparative advantage considerations. We calibrate the model to represent countries with...

The main purpose of this note is to establish a precise version of the proposition that, in the context of a worldwide constituency, a customs union is more beneficial or less harmful than a comparable but distinct free trade association. It is shown that, corresponding to each feasible...