We nest an extended two-way fixed effect (ETWFE) estimator for staggered difference-in-differences within the structural gravity model. To test the ETWFE, we estimate the effects of regional trade agreements (RTAs). The results suggest that RTA estimates in the current gravity literature may be...

Generally, trade policies exclude provision for predictability and accountability as transparency measures and facilitates trade consensus that enhance market access, reduce trading costs, and promote cooperation. In analyzing the trajectories on transparency, free trade agreement (FTA), and...