Global trade growth slowed in 2018 amid a weakening of economic growth in China and the Euro Area and rising trade protectionism. The volume of trade grew by 3.8 percent, down from 5.4 percent in 2017, but has shown signs of reviving in the first quarter of 2019. However, the U.S. tariff...

This paper attempts to quantify the impact of economic policy uncertainty on overall trade and trade linked to global value chains. Using new data on policy uncertainty for 18 countries and 24 years, it finds a statistically significant negative impact of policy uncertainty on overall trade...

Many studies have found that international borders represent large barriers to trade. But how do international borders compare to domestic border barriers? We investigate international and domestic border barriers in a unified framework. We consider a data set of exports from individual US...

Trade data are typically reported at the level of regions or countries and are therefore aggregates across space. In this paper, we investigate the sensitivity of standard gravity estimation to spatial aggregation. We build a model in which initially symmetric micro regions are combined to form...