-product firms live forever, and the large firms invest in innovation in order to enlarge their product spans. All firms export. I …

We study unanticipated tariffs on imports of intermediate goods in a setting with firm-to-firm supply relationships … free trade. Once they are in place, the home government surprises with an input tariff. This can lead to renegotiation with … deterioration in the terms of trade. The welfare implications of a tariff are ambiguous in this second-best setting, but plausible …

aggregate export and FDI sales relative to the domestic and foreign market sizes. In particular, it is shown that firm level … heterogeneity is an important determinant of relative export and FDI flows. We use the model to derive testable empirical … predictions on the relative aggregate export and FDI sales in a given country for a given sector based both on relative costs and …

unions to estimate the effect of currency unions on trade using (then-) conventional gravity models. In this paper, we use a … variety of empirical gravity models to estimate the currency union effect on trade and exports, using recent data which … a smaller trade effect than other currency unions; it has a mildly stimulating effect at best. Third and most …

Supply chain disruptions, which have become commonplace, are often associated with globalization and trade. Little is … CES case, a subsidy for diversification achieves the constrained social optimum and dominates a policy that promotes … at home versus abroad may achieve greater welfare than ones that encourage or discourage diversification …

We characterize trade policies that result from political competition when assessments of well-being include both … increased income inequality or heightened racial and ethnic tensions, lead to pronounced changes in trade policy. We analyze the …

tariff or export subsidy is positive. Positions and expected outcomes monotonically approach free trade as party discipline … protectionist bias in majoritarian politics. When trade policy is chosen by the majority delegation and legislators in the minority … have limited means to influence choices, the parties announce trade policies that favor specific factors, and the expected …

First I describe a number of political economy approaches that have been developed to explain trade policies. All …. Importantly, there are two-way interactions in such systems. They link the formation of trade policies in the international arena … analysis of a host of important problems, such as negotiations about tariff levels or the formation of free trade areas. Recent …