Significant attention has been paid to why a durable-goods producer with little or no market power would monopolize the maintenance market for its own product. This paper provides an explanation for this practice that is based on consumer switching costs and the choice of consumers between...

An extensive theoretical literature has developed that investigates the role of promotions as a signal of worker ability. There have been no tests, however, of the empirical validity of this idea. In this paper we develop the theory in a manner that allows us to generate testable predictions,...

This paper formally explores the optimal length of copyright protection when the value of an intellectual work changes over time due to depreciation and value-enhancing ex-post investments. The first main finding is that, in the case of a single project, granting infinitely-lived copyright...

One argument concerning copyright protection is that the returns to copyright protection are limited because of indirect appropriability, where indirect appropriability is the idea that original producers receive returns from copying because the buyers of original units are willing to pay more...

A number of branches of the literature on internal labor markets have matured to the point that there is now a healthy two-way interaction between theory and empirical work. In this survey I consider two of these branches: i) wage and promotion dynamics; and ii) human-resource practices. For...

Beginning with Waldman (Rand 1984), it is well understood that in a world characterized by asymmetric learning promotions can serve as a signal of worker ability which can, in turn, lead to an inefficiently small number of promotions. In this paper we explore two related issues. First, how...

This dissertation consists of three chapters. The first chapter provides an overview of the dissertation by summarizing the two papers presented in the following chapters.The paper in the second chapter contributes to the labor-macro literature. More specifically, I develop a general equilibrium...

This dissertation consists of three chapters studying different issues related to self-employment and entrepreneurship. The first chapter studies the effects of labor market frictions and credit constraints in an economy with self-employment. Two types of self-employed workers emerge in the...

My dissertation consists of two independent essays on macroeconomic volatility and monetary economics respectively. The first essay explores the implications of imperfect information on macroeconomic volatility. It offers a micro-founded theory of time variation in the volatility of aggregate...

In this dissertation, we analyze some patterns of aggregate job reallocation that are significantly determined by the coexistence of heterogeneous businesses in any industry. First, we argue that the interaction of non-strictly convex adjustment costs and learning about true efficiency can...