The number of preferential trade agreements has greatly increased over the past two decades, yet most existing bilateral arrangements take the form of free trade areas, and less than ten percent can be considered to be fully °edged customs unions. This paper develops a political economy model...

The number of preferential trade agreements has greatly increased over the past two decades, yet most existing bilateral arrangements take the form of free trade areas, and less than ten percent can be considered to be fully fledged customs unions. This paper develops a political economy model...

This paper examines the welfare implications of multiple free trade agreements in a model of imperfect competition. We show that free trade is the unique Nash equilibrium under the simple rule that any two countries can form a bilateral free trade agreement. Specifically, a country is always...