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...

Despite the deepening trend of neo-protectionism and the exacerbation of disproportions in national economies, trade integration remains a relevant form of collaboration among countries worldwide and a driver of their innovation and technological development. The article provides comparative...