Obtaining health insurance through an employer pools risk, but may lead to moral hazard, where employees with more coverage seek care valued below cost, and adverse selection, where the unhealthy choose more generous plans, driving up premiums. In the first essay, I model the decision to choose...

The average investor reaction is neutral to primary offerings by firms with managerial incentives closely tied to the shareholder value. Investors react negatively (1) when there are insufficient managerial ownership stakes to deter misuse of SEO proceeds and (2) when there are negative signals...

This dissertation includes two essays on adverse selection and moral hazard problems in reinsurance markets. The first essay builds a competitive principal-agent model that considers adverse selection and moral hazard jointly, and characterizes graphically various forms of separating Nash...

We consider misconceptions about the functioning of the economy as one possible explanation for the emergence of crises in democracies. Furthermore, we study a political process which may lead to successful reform. First of all, we show that voters can make inefficient decisions concerning...

Allokationsverfahren zur Vergabe von Zutrittslizenzen an Marktneulinge differieren hinsichtlich mehrerer Aspekte. Einer davon ist die Veröffentlichung der vom Regulierer im Lizenzvergabeverfahren gesammelten Informationen. Der Autor untersucht den Einfluss der Informationsweitergabe auf die...

This thesis contributes to the literature by providing new insights into the patterns and market implications of insider trading. The inferences presented here are based on the insider trading reports filed with the Polish Securities and Exchange Commission and the New Zealand Exchange. First,...

Die effektiv zu zahlende Prämie bestimmt sich in der Privaten Krankenversicherung als Summe aus Tarifbeiträgen, (optimalen) Selbsttragungen und Beitragsrückerstattungen. Letztere dienen der sekundären Prämiendifferenzierung. Ändert nun ein Versicherer sein Rückerstattungssystem, so hat...

The past few years have witnessed the increasing ubiquity ofuser-generated content on seller reputation and product condition inInternet based used-good markets. Recent theoretical models of tradingand sorting in used-good markets provide testable predictions to use toexamine the presence of...

This paper analyzes optimal pricing for information goods underincomplete information, when both unlimited-usage (fixed-fee) pricingand usage-based pricing are feasible and administering usage-basedpricing may involve transaction costs. It is shown that offeringfixed-fee pricing in addition to a...