How does geographic distance affect the impact of trade agreements on bilateral exports, and through what channels? This paper examines this questions in a gravity model context for different types of goods for 185 countries over the period 1965-2010. Three stylized facts emerge. First, although...

This paper analyzes the impacts of selected trade facilitation measures on international trade flows. A gravity model is used to estimate four equations: a pooled cross-section model; a fixed-effects model; a random effects model; and a Poisson maximum likelihood estimator. The contribution of...

This paper evaluates the performance of alternative estimators of the gravity equation when zero trade flows result from economically-based data-generating processes with heteroscedastic residuals and potentially-omitted variables. In a standard Monte Carlo analysis, the paper finds that this...