This study investigates the causes and welfare consequences of unravelling in two-sided matching markets. "Unravelling" arises when agents contract with one another at an early stage, before much of the relevant information is available. Such early matches may lead to ex-post inefficiencies and are perceived as socially harmful. This study...
This dissertation develops dynamic models to examine markets with product differentiation where both firm conduct and consumer behavior is jointly influenced by switching costs, network effects and technological innovation. In Chapter 1 I propose a structural model of competition where firms set prices, introduce new products and scrap obsolete models....
This dissertation explores price differences observed in the market. While some differences are necessitated by market conditions, the others are strategic. I illustrate the former in a study of electricity spot markets in Italy and the latter for the video rental industry.
The first project examines the welfare gains from...
In the first chapter of my dissertation, I study the effects of an exogenous increase in government spending in models incorporating price and wage nominal rigidities. I find that the effects of price stickiness on the output multiplier depend crucially on the behavior of the monetary authority. If the monetary...
Ethicity, race and gender play an important role in labor markets; labor market outcomes such as hiring and compensation are very different across different social groups. These differentials are partly the result of differences in productivity and preferences and partly the result of discrimination. Chapter two uses an audit study...
In the first part of the dissertation I study mechanism design under limited communication. Chapter 1 offers a detailed analysis of auctions with simultaneous limited communication. I solve for both welfare and revenue maximizing equilibria. The striking feature of optimal equilibria is that they are asymmetric even when the setup...
This dissertation consists of three essays on the identification analysis of econometric models.
The first essay explores the identification question in semiparametric binary response models when all regressors have discrete support. I suggest a recursive procedure that finds sharp bounds on the parameter of interest and can be applied to...
In the first chapter we analyze profits and efficiency implications of a relation between an upstream duopoly and downstream monopoly in Hotelling linear city model. While exclusive contracts maximize the monopolist's profit, at the same time socially they are inefficient. Linear prices, while more efficient, usually also do not achieve...
The expansion of public education at the beginning of the twentieth century had a profound effect on the American economy. This dissertation explores the impact of changing educational institutions on both individuals and communities with a study of Iowa during its introduction of modern grammar schools and high schools during...
The main theme of this dissertation are departures from standard assumptions in economic theory, specifically, departures from the model of subjective expected utility in decision theory.
Part 1 axiomatizes the robust control criterion of multiplier preferences introduced by Hansen and Sargent (2001). The axiomatization shows that the class of multiplier...