There has been an explosion in the number of preferential trade agreements in the past decade. Preferential trade agreements are characterized by liberalization with respect to only a few partners and thus they can potentially clash with and retard multilateral trade liberalization. Despite this...

The proliferation of preferential trade liberalization over the past 20 years has raised the question of whether it slows down multilateral trade liberalization. Recent theoretical and empirical evidence indicates this is the case even for unilateral preferences that industrial countries provide...