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...

Im Fahrzeugbau und im Verkehrswesen hat die praktische Umsetzung von Ubiquitous Computing Technologien einen hohen Grad erreicht. Unter diesem Begriff ist die Ausstattung unterschiedlicher Gegenst?nde mit Prozessoren und Sensoren zu verstehen, welche in der Lage sind, Daten ?ber ihren eigenen...

Replaced with revised version of paper 08/24/09.

We consider a Diamond-type model of endogenous growth in which there are three assets: fiat money, government bonds, and equity. Because of productivity shocks, the equity return is uncertain, and risk-averse investors require a positive equity premium. Typically, there exist two steady states,...

We incorporate a wage-bargaining structure in a dynamic general equilibrium model and show how this feature changes short- and long-run properties of equilibria compared with a perfectly competitive setting.We discuss how employment, capital and income shares respond to wage-setting shocks and...

This paper considers an endogenous growth model with productive government spending in which overlapping generations of agents vote sequentially on policy. With sequential majority voting, there is a multiplicity of politico-economic equilibria originating from self-fulfilling policy...

In this paper, we analyze how to utilize discount rates in intergenerational projects. Firstly, neoclassical decision-making is depicted in Ramsey and overlapping-generations models (OLG-models). Afterwards we investigate the utilization of time preference rates and opportunity cost rates in an...

The 1980s and 1990s have been marked with a series of financial and banking crises all over the world. This turned the attention of economists to such questions as how a financial system should be structured in order to reduce the vulnerability of an economy to the risk of a crisis, or what...

In this article we extend the recent literature on overlapping generations with a pollution sector by allowing generations to have a certain pollution perception with regards to the stock of pollution. Pollution perception, assumed to be part of the generations' preferences, can be either a...