"We prove that the change in welfare of a representative consumer is summarized by the current and expected future values of the standard Solow productivity residual. The equivalence holds if the representative household maximizes utility while taking prices parametrically. This result justifies...

We prove that in a closed economy without distortionary taxation, the welfare of a representative consumer is summarized to a first order by the current and expected future values of the Solow productivity residual in level and by the initial endowment of capital. The equivalence holds if the...

We study financial fragility, exchange rate crises and monetary policy in an open economy model in which banks are maturity transformers as in Diamond-Dybvig. The banking system, the exchange rate regime, and central bank credit policy are seen as parts of a mechanism intended to maximize social...

When there are binding price controls, there are shortages and the allocation of goods across consumers may not be efficient. In general, the misallocation costs of price controls are first order, while the classic welfare losses due to undersupply are second order. This paper presents an...

Most developed economies invest in public goods such as national defense, education, infrastructure, and the environment. Expenditures on public projects entail a diversion of funds away from investments in private capital. Discount rates used to evaluate such projects should reflect the rate of...

This paper formulates a simple model of "perfect community competition." It is shown that (1) the equilibrium is Pareto optimal; (2) communities will, in general, be heterogeneous; not all individuals will have the same tastes; but (3) all individuals of a given skill within the community will...

This paper analyzes the importance of local interaction between individuals of different linguistic groups for the provision of public goods at the national level. The micro-founded conceptual framework we develop predicts that a country's public goods (i) decrease in its overall linguistic...

When trade involves differentiated products, preferential ties to a group settled abroad facilitate an exporter's entry into the foreign market by providing information and access to distribution channels. This contrasts with the difficulties experienced by an unattached producer unfamiliar with...

In this paper, we present a model where trade is motivated both by preference for variety and comparative advantages. We use this framework to analyze the welfare implications of trading blocs among countries with different endowments with and without transportation costs. In this framework, we...

We develop a simple two-sector dynamic model to examine the effects of international trade in the presence of pollution-created cross- sectoral production externalities. We assume that the production of 'Smokestack' manufactures generates pollution, which lowers the productivity of an...