Increasing-returns-to-scale imperfect competition trade models predict a more than proportionate relationship between the larger country s share in world endowments and its share in producing firms: the so called home market effect (HME). We show that the single-sector Melitz (2003) model...

We know that euro-area member countries have absorbed asymmetric shocks in ways that are inconsistent with a common nominal anchor. Based on a reformulation of the gravity model that allows for such bilateral currency misalignment, we disentangle the conventional trade cost channel and trade...

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...

We show that the combination of monopolistic competition and input-output linkages generate what we call an input distortion. The distortion arises because material input prices involve a markup over the social opportunity cost. This has so far escaped attention in the literature addressing...

Since the 1990s,Germany and other European countries have become more open to trade. The period is characterized by the fall of the iron curtain, the surge of China and its accession to the World Trade Organization (WTO), the introduction of the Euro, the creation of the Schengen area, the...

How do input-output linkages modify countries' incentives to conduct commercial policies? We address this question in a version of the Melitz (2003) model where the production-side of the economy is enriched by input-output linkages. The bundle of intermediate inputs used in production in...