There is a growing number of studies that investigate the effect of trade liberalization on productivity and nearly all assume that trade policy is independently determined of productivity, hence it is exogenous. I show that this assumption is generally invalid both theoretically and...

In this paper, I start out with a standard political economy of trade policy model to guide the subsequent estimation of the determinants of trade policy in a developing country. I carefully test the model with Colombian data from 1983 to 1998 accounting for endogeneity and omitted variable bias...

Preferential trade agreements (PTAs) are characterized by liberalization with respect to only a few partners and thus they can potentially clash with, and retard multilateral trade liberalization (MTL). Yet there is almost no systematic evidence on whether the numerous existing PTAs actually...