Imagine a society with perfect economic equality. Then, one day, this egalitarian utopia is disturbed by an entrepreneur with an idea for a new product. Think of the entrepreneur as Steve Jobs as he develops the iPod, J. K. Rowling as she writes her Harry Potter books, or Steven Spielberg as he...

Much recent work emphasizes the joint nature of the consumption decision and the portfolio allocation decision. In this paper, we compare two formulations of the Capital Asset Pricing Model. The traditional CAPM suggests that the appropriate measure of an asset's risk is the covariance of the...

The optimal design of a tax system is a topic that has long fascinated economic theorists and flummoxed economic policymakers. This paper explores the interplay between tax theory and tax policy. It identifies key lessons policymakers might take from the academic literature on how taxes ought to...

The subfield of macroeconomics was born, not as a science, but more as a type of engineering. The problem that gave birth to our field was the Great Depression. God put macroeconomists on earth not to propose and test elegant theories but to solve practical problems. This essay offers a brief...

This paper discusses the NAIRU--the non-accelerating inflation rate of unemployment. It first considers the role of the NAIRU concept in business cycle theory, arguing that this concept is implicit in any model in which monetary policy influences both inflation and unemployment. The exact value...