Empirical studies show that tradable consumption goods are more expensive in rich countries. This paper proposes a simple yet novel explanation for this apparent failure of the law of one price: Consumers' utility from tradable goods depends on their consumption of complementary goods and...

We develop a model of international trade with two dimensions of firm heterogeneity and export quality constraints that manifest as higher variable trade costs for lower quality firms. In addition to "productivity", firms are also heterogeneous in their "caliber" -- the ability to develop...

The procompetitive effects of trade policies are analyzed in a foreign duopoly model of vertical product differentiation. A uniform tariff policy complying with the Most Favored Nation (MFN) clause is welfare superior to free trade because of a pure rent-extracting effect. A nonuniform tariff...

Existing estimates of power laws in firm size typically ignore the impact of international trade. Using a simple theoretical framework, we show that international trade systematically affects the distribution of firm size: the power law exponent among exporting firms should be strictly lower in...

Firm size follows Zipf's Law, a very fat-tailed distribution that implies a few large firms account for a disproportionate share of overall economic activity. This distribution of firm size is crucial for evaluating the welfare impact of macroeconomic policies such as barriers to entry or trade...

This paper proposes a new channel through which international trade affects macroeconomic volatility. We study a multi-country model with heterogeneous firms that are subject to idiosyncratic firm-specific shocks. When the distribution of firm size follows a power law with exponent sufficiently...

This paper evaluates the welfare impact of observed levels of migration and remittances in both origins and destinations, using a quantitative multi-sector model of the global economy calibrated to aggregate and firm-level data on 60 developed and developing countries. Our framework accounts...

This paper studies the integration strategies of multinational firms in a multiperiod model under incomplete contracts and uncertainty. I incorporate continuous levels of integration to the study of organizational choice in an existing model of foreign direct investment (Antras and Helpman,...

This paper examines the determinants of the backward vertical linkages of Japanese foreign affiliates in manufacturing for the period 1994-2000, focusing on the local backward linkages, or local procurements in the host country. Our major findings are twofold. First, the unobserved...

This paper focuses on the impact of technological progress (modeled as learning by doing) on economic growth when one of the inputs in production is an open access renewable resource. Technological progress is found to indi- rectly induce resource depletion, such that sustainable growth will not...