Since the seminal work of Krugman (1979), product variety has played a central role in models of trade and growth. In spite of the general use of love-of-variety models, there has been no systematic study of how the import of new varieties has contributed to national welfare gains in the United...

This paper examines the optimal (first-best) fiscal policy in a stochastic representative agent model that exhibits a ``keeping up with the Joneses'' utility function and imperfectly competitive product markets. We find that the optimal labor tax is a constant, whose sign is determined by the...

This paper develops a computable dynamic general equilibrium model in which corporate demand for liquidity is endogenously determined. In the model liquidity demand is motivated by moral hazard as in Holmstrom and Tirole (1998). As a result of incorporating agency cost and endogenously...

This paper examines the relationship of business cycles, the terms of trade and Tobin's q using a three-sector dynamic stochastic general equilibrium model for a small open economy. Results show that terms of trade shocks account for half of actual volatility of GDP and stock market indices for...

The paper focuses on short run macroeconomic dynamics triggered by demand side shocks. In particular, the paper analyzes, in a general equilibrium framework, the impact of transitory demand side shocks on the behavior of macroeconomic variables and examines the relevance of policy instruments...

We compare the performance of a currency board, inflation targeting, and dollarization in a small, open developing economy with a liberalized capital account. We focus on the transmission of shocks to currency and country risk premia and on the role of fluctuations in premia in the propagation...

Using firm level data, Bernard and Jensen (1995, 1999, 2001) find that exporters are bigger and more productive than non-exporters. These studies also find that the identity of exporting firms changes over time and that fixed entry and participation costs influence firm's decision to enter and...

How large are welfare costs related to economic aggregate fluctuations is a topic of great concern among economists at least since Robert Lucas’ well-known and thoughtprovoking exercise in the late 1980s. Our analysis assesses the magnitude of such costs for 11 countries in South America...

Empirical studies of economic growth across countries are abundant and rich in conclusions, some of them widely accepted. This is not the case, however, with the empirics of business cycles. Particularly, there exists little evidence explaining why some countries take more time than others...