In early 2020, the disease Covid-19 caused a drastic lockdown of the Chinese economy. We use a quantitative trade model with input-output linkages to gauge the effects of this adverse supply shock in China on the global economy through international trade and global value chains (GVCs). We find...

World trade evolves at two margins. Where a bilateral trading relationship already exists it may increase through time (intensive margin). But trade may also increase if a trading bilateral relationship is newly established between countries that have not traded with each other in the past...

We argue that the narrative of variety-induced gains from trade in differentiated goods needs revision. If producing differentiated varieties of a good requires differentiated skills and if the work force is heterogeneous in these skills, then firms are likely to have monopsony power. We show...

We develop a theoretical framework to explain firms’ offshoring decisions in the presence of uncertainty. This model highlights the role of labor market institutions in shaping a firm’s ability to effectively react upon future shocks, yielding a sharp prediction of the prevalence of...

This paper develops and applies a test of the property rights theory of the firm in the context of global input sourcing. We use the model by Pol Antràs and Elhanan Helpman, “Global Sourcing," Journal of Political Economy, 112:3 (2004), 552-80, to derive a new prediction regarding how the...

We develop a model that combines monopolistic competition on goods markets with skill-type heterogeneity on the labor market to analyze the effects of trade and migration on welfare and inequality. Skill-type heterogeneity and partial specificity to firms’ endogenously chosen skill...

In this paper, we explore the role of trade in differentiated final goods as well offshoring of tasks for inequality both within and between countries. We emphasize the distinction between managerial and production labor. Production labor is assumed to be a variable input composed of tradable...

This paper scrutinizes the effects of investor-state dispute settlements (ISDS) and national treatment provisions in a two-period model where foreign investment is subject to domestic regulation and a holdup problem. It shows that ISDS can mitigate the holdup problem and increases aggregate...

In this paper, we zoom in on the firm level of German merchandise foreign trade, using a novel data base with information on the export and import value by firm, country, product and year for the period 2011-2019. Problems arising from the consolidated reporting of taxable entities and the...

This paper investigates the role of firm productivity in drawing firm boundaries in global sourcing. Our analysis focuses on how productivity affects the allocation of ownership rights between the headquarter of a firm and an intermediate input supplier (vertical integration vs. outsourcing), as...