We explore the implications of models with increasing returns, endogenous variety and firm-level heterogeneity for the quantification of the gains from trade. We first focus on the impact of trade liberalization on imported variety by analyzing the experience of Costa Rica from 1986 to 1992. We...

In this paper we present a version of the Melitz (2003) model for the case of a small economy and summarize its key relationships with the aid of a simple figure. We then use this figure to provide an intuitive analysis of the implications of asymmetric changes in trade barriers and show that a...

We explore the effect of trade policy on productivity and welfare in the now standard model of firm-level heterogeneity and product differentiation with monopolistic competition. To obtain sharp results, we restrict attention to an economy that takes as given the price of imports and the demand...

China's size, rapid growth, external openness, and trade performance have led to varying perceptions among the countries of Latin America: Is China a potential new market, a potent new competitor, or both? This book assesses the near-term strategic implications of China's economic performance...

China's size, rapid growth, external openness, and trade performance have led to varying perceptions among the countries of Latin America: Is China a potential new market, a potent new competitor, or both? This book assesses the near-term strategic implications of China's economic performance...

There is little work on the inner workings of journals. What factors seem to affect the ability to publish in a journal? Could simple rules (which are already used by some journals) like the desk rejection of a significant minority of papers, help to streamline the process? At what cost? How...

This paper shows that the results of Venables (1987) depend critically on the assumption that there are no fixed costs of trade. The introduction of fixed costs of exporting, while making the model more consistent with the empirical evidence, leads to the opposite conclusion that technological...

In this paper we use the monopolistic competition model with heterogeneous firms to study the effect of different policies on productivity and welfare, and provide three particular policies, which allow to reach the first best allocation in the economy. We also show that an export subsidy...

This paper builds a tractable partial equilibrium model to help explain the role of trade preferences given to developing countries, as well as the efficacy of various subsidy policies. The model allows for firm level heterogeneity in demand and productivity and lets the mass of firms that enter...