Scholars in many fields of economics have become very interested in Silicon Valley-style agglomeration of individual industries. These agglomerations are striking features of the economic landscape and may provide insightsinto the nature of the increasing returns technologies and spillovers that...

This paper explores a monopolist's incentives to provides upgraded versions of its software. In particular, the authors examine how market power, commitment problems and price discrimination may lead a monopolistice supplier of a network good to introduce upgrades when social welfare would be...

The paper provides a general analysis of the types of models with E-Perturbations which have been used recently to discuss the evolution of social conventions. Two new measures of the size and structure of the basins of attraction of dynamic systems, the radius and coradius, are introduced in...

This paper examines the agency conflict between mutual fund investors and mutual fund companies. Investors would like the fund company to use its judgment to maximize risk-adjusted fund returns. A fund company, however, in its desire to maximize its value as a concern has an incentive to take...

This paper explains the size and value “anomalies†in stock returns using an economically motivated two-beta model. We break the beta of a stock with the market portfolio into two components, one reflecting news about the market’s future cash flows and one reflecting news about...