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...

In oligopolistic industries that are unionised and may be affected by offshoring, falling offshoring costs have a moderating effect on trade unions. They will accept lower sector wages in order to discourage mobile forms from leaving the country. Since such wages are independent of the workers'...