We derive a simple equation for the welfare gains from trade when tariffs are liberalized or iceberg trade costs fall. Covering various one-sector trade models that may or may not feature extensive margins and imperfect competition, we generalize the analysis of Arkolakis, Costinot and...

How shifts in the economic leadership between countries can occur has been widely debated not only since the recent catch up of China in several sectors. However, there is no adequate theoretical model analyzing this question in the light of trade liberalization. This paper is the first one to...

This paper introduces the theory of firm organization under moral hazard into an equilibrium model of international trade with heterogeneous talents and technologies. The model is able to explain how the allocation of power and the provision of financial incentives inside firms varies within and...

We develop a heterogeneous-firms model with trade in goods, labor mobility and credit constraints due to moral hazard. Mitigating financial frictions reduces the incentive of high-skilled workers to migrate to one region such that an unequal distribution of industrial activity becomes less...

Quantifying the welfare effects of trade liberalization is a core issue in international trade. Existing frameworks assume perfect labor markets and therefore ignore the effects of aggregate employment changes for welfare. We develop a quantitative trade framework which explicitly models labor...

In the 2000s, China's WTO entry constituted a major trade shock. In this paper, we analyze its eff ects on trade and value chains. The fragmentation of the global value chain makes it hard to disentangle who produces for whom. Value added trade contains this information. We build a multi-sector...

This paper documents a trend towards deglobalization in European-based multinational networks for the period 2010-2019. In the second half of the decade, the number of foreign contraction episodes shows an increasing trend, while the number of foreign expansions decreased substantially. Foreign...