If firms purchase capital up to the point where there is no further marginal benefit, and the firms' securities are equal in value to the capital, then the market value of securities measures the quantity of capital. I explore the implications of this hypothesis using data from U.S. non-farm,...

This paper studies optimal investment policies when the production function depends on capital of various vintages. In such an environment it is natural to ask whether the firm will invest in old-vintage capital at all. In this paper I derive such a condition. Predictably, investment in old...

Despite enormous growth in international capital flows, capital-output ratios continue to exhibit substantial heterogeneity across countries. We explore the possibility that taxes, particularly corporate taxes, are a significant source of this heterogeneity. The evidence is mixed. Tax rates...

Many economists and policy makers are concerned about international differences in technology and labor quality, correctly seeing these issues as crucial to long term growth in living standards. Typically, international trade economists assume that technological knowledge is the same in all...

Since the early 2000s, research by Thomas Piketty, Emmanuel Saez, and their coathors has revolutionized our understanding of income and wealth inequality. In this paper, I highlight some of the key empirical facts from this research and comment on how they relate to macroeconomics and to...

In this paper I examine the evolution of labor relations institutions during the initial phase of marketization in Poland, Hungary. and Czechoslovakia and develop a model of changing support for reforms during the transition to a market economy. I find surprising stability in labor institutions...

Eastern European countries have experienced sharp declines in real GDP since 1990. One of the reasons for this decline is the Soviet trade shock, deriving from the collapse of the CMEA and of traditional export markets in the Soviet Union. This paper is an attempt to quantify the magnitude of...