This dissertation consists of three chapters on adverse-selection type insurance markets. Chapter 1 develops a model for analyzing non-exclusive insurance markets. It establishes that the "screening" considerations of models following Rothschild and Stiglitz (1976)-long applied for analysis of...

Chapter 1 analyzes Pareto optimal non-linear taxation of profits and labor income in a private information economy with endogenous firm formation. Individuals differ in both their skill and their cost of setting up a firm, and choose between becoming workers and entrepreneurs. I show that a tax...

Die vorliegende Arbeit geht der Frage nach, unter welchen Bedingungen die Sozialversicherung in Gegenwart eines optimal gestalteten Steuersystems zu Umverteilungszwecken geeignet ist. Ausgangspunkt sind die Wohlfahrtseffekte der Sozialversicherung, wenn das Steuerinstrumentarium auf einen...