This paper examines the relationship of 1987 retail grocery prices to supermarket sales concentration across 95 U.S. metropolitan areas. The regression model incorporates a large number of population, retail-cost, and retail competition factors and separate prices by type of grocery item. We...

This thesis contains four essays which are all from the broader field of insurance economics. The chapters can be read independently, although there is a certain connection between the articles. Chapter 2, which deals with moral hazard, and chapter 3, which is on oligopolistic models in the...

The aim of this work is to establish a mathematically precise framework for studying games of capital accumulation under uncertainty. Such games arise as a natural extension from different perspectives that all lead to singular control exercised by the agents, which induces some essential...

This dissertation uses game theoretic models to examine the effects of agent anonymity on markets for goods and for information. In open, anonymous settings, such as the Internet, anonymity is relatively easy to obtain --- oftentimes another email address is sufficient. By becoming anonymous,...

This dissertation examines two problems that may arise in matching problems.The first two chapters deal with auctions for multiple units where bidders exhibitexternalities. The third chapter links risk aversion and information to unraveling inlabor markets.Auctions can lead to efficient...

Since Hotelling's (1929) seminal work, economists have tried to understand how product differentiation affects price competition. I study the product location decisions, on a vertical characteristic space, of two sets of horizontal competitors when the inputs supplied by the "upstream" set (the...

Die Liberalisierung der Elektrizitätsmärkte in Europa hat zu einem deutlichen Strukturwandel der Energiewirtschaft geführt; Überkapazitäten und Wettbewerbsdruck bewirkten eine erhebliche Umorientierung in den Energieversorgungsunternehmen. Durch die zunehmende Liquidität des kurzfristigen...