This article compares two leading models of asset pricing: the capital asset pricing model (CAPM) and the arbitrage pricing theory (APT): I argue that while the APT is compatible with the data available for testing theories of asset pricing, the CAPM is not. In reaching this conclusion emphasis...

After long suffering from benign neglect if not outright contempt, industrial policy is almost fashionable again. The global financial and economic crisis known as the Great Recession has forced researchers and policy makers to confront the reality that market forces alone generally do not lead...

We explore the interaction between two facts. The first is that income is variable; the second is that the tax and transfer system transforms before tax income into after tax income in highly non-linear ways. The effect is to penalize (and reward) income variability in a manner which is both...

Asset pricing relations are developed for a vector of assets with a time varying covariance structure. Assuming that the eigenvectors are constant but the eigenvalues changing, both the Capital Asset Pricing Model and the Arbitrage Pricing Theory suggest the same testable implication: the time...

<DIV>In the United States today, there are some 3,400 separately governed colleges and universities, amounting to a higher education industry with expenditures that constitute 2.8% of the gross national product. Yet, the economic issues affecting this industry have been paid relatively little...</div>

We examine the implications of arbitrage in a market with many assets. The absence of arbitrage opportunities implies that the linear functionals that give the mean and cost of a portfolio are continuous; hence there exist unique portfolios that represent these functionals. These portfolios span...