In this paper, we develop a political economy model to study the decision of representative democracies to join a preferential trading agreement (PTA), distinguishing between free trade areas (FTA) and customs unions (CU). Our theoretical analysis suggests that income inequality and bilateral...

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...