We use 6-digit bilateral trade data to document the effect of WTO/GATT membership on the extensive and intensive product margins of trade.We construct gravity equations for the two product margins motivated by Chaney (2008). The empirical results show that standard gravity variables provide good...

The empirical literature on the effect of trade agreements has reached a consensus that WTO effects are insignificant or modest at best especially compared to the robust and strong positive effect of preferential trade agreements (PTAs) on bilateral trade (Rose, 2004; Eicher and Henn, 2011; Baier and...