This paper explores some implications of the use of national currencies as international reserves. First, a closed economy overlapping-generations model is developed to derive time-consistent tax and inflation policies for a government that is financing a given stream of expenditures. Second,...

In a dynamic economy land and capital serve not only as factors of production but as assets which individuals use to transfer income from workinq periods to retirement. Static models of international trade based on the specific-factors model incorporate only the first of these. Once the second...

We use Japanese prefectural wage and land price data to estimate the magnitude of agglomeration effects in manufacturing and finance. We also examine the range of agglomeration effects by estimating the extent to which they diminish with distance, using a specification that encompasses the polar...

Innovative activity is highly concentrated in a handful of advanced countries. These same countries are also the major exporters of capital goods to the rest of the world. We develop a model of trade in capital goods to assess its role spreading the benefits of technological advances. Applying...

We reconcile international trade theory with findings of enormous plant-level heterogeneity in exporting and productivity. Our model extends basic Ricardian theory to accommodate many countries, geographic barriers, and imperfect competition. Fitting the model to bilateral trade among the United...

We model the invention of new technologies and their diffusion across countries. Our model predicts that, eventually, all countries will grow at the same rate, with each country's productivity ranking determined by how rapidly it adopts inventions. The common growth rate depends on research...

The paper provides a theoretical framework for analyzing policy formation among independent authorities operating in an interdependent environment. This is then applied to the analysis of optimal monetary policy in a stochastic two-country model with rational expectations. The main conclusions...

Significant amounts of private capital have flowed out of several of the more heavily indebted developing countries. This outflow, often called "capital flight ," largely escapes taxation by the borrowing-country government, and has generated concern about the prospects for future servicing of...

We develop a simple model of the choice between exploiting a technology in another country via export and via direct foreign investment. The model points to the destination country's size, level of technological sophistication, and distance from the source as factors in the decision. Moreover,...

In this paper we provide an integrative treatment of the welfare effects of trade and industrial policy under oligopoly, and characterize qualitatively the form that optimal intervention takes under a variety of assumptions about the number of firms, their conjectures about the response of their...