This paper reviews the scientific contributions of Paul Krugman to the study of international trade, on the occasion of his receipt of the 2008 Nobel Memorial Prize in Economics.  A simplified exposition is presented of some of his principal findings, including: the effects of trade on firm...

This paper reviews the scientific contributions of Paul Krugman to the study of international trade, on the occasion of his receipt of the 2008 Nobel Memorial Prize in Economics. A simplified exposition is presented of some of his principal findings, including: the effects of trade on firm scale...

In New Trade Theory models, the larger region hosts an overproportionate share of producers. This Home Market Effect (HME) exacerbates regional income discrepancies caused by trade frictions or technology differences. With homogeneous firms, it requires inter-industry reallocations to emerge. We...

We develop a multi-country Dixit-Stiglitz model to investigate the impacts of: (i) changes in the international distribution of consumers' expenditure; (ii) decreasing tariffs; and (iii) improvements in transportation infrastructure. We show that, in general, decreasing tariff barriers do not...

Chao and Yu (2002) study immigration impact in a host country in the presence of imperfect competition. In their two sector model, when the monopolized non-traded service sector is skilled labor intensive, skilled labor immigration improves the welfare of the host country residents but unskilled...

Uruguay has experienced a remarkable recovery since the 2002 crisis, supported by sound policies and favorable external conditions. With the framework put in place in 2002, Uruguay abandoned an exchange rate peg in favor of a free float, adoped a monetary regime initially based on money targets,...

We provide extensive theoretical analysis of the general equilibrium of an economy with imperfect competition in the final goods sector, endogenous production and fully flexible prices in the presence of occasionally binding cash-in-advance (CIA) constraints, under general assumptions about the...