We develop a micro based macro model for residential home prices in an economy where defaults on residential mortgages negatively affect housing prices. Our model enables us to study the impact of subprime defaults on prime borrowers and the impact of various government policies on the housing...

We develop a dynamic simulation model for residential home prices in an economy where defaults on residential mortgages negatively affect housing prices and aggregate income. This simulation model enables us to study the impact of subprime defaults on prime borrowers and the impact of various...

COVID-19 has taught us that a pandemic can significantly increase biometric risk and at the same time trigger crashes of the stock market. Taking these potential co-movements of financial and non-financial risks into account, we study the portfolio problem of an agent who is aware that a future...

This paper studies the default anomaly that has been documented in the literature. We show that after controlling for the default-risk premium the default anomaly disappears. In contrast, controlling for credit spreads does not fully eliminate the anomaly. We also relate our results to the IVOL...

This paper studies the relationship between the cross section of stock returns and firm specific jump risk. Using option data, we estimate various option-based time-series. Sorting firms according to their firm specific jump risk, we find that this risk is priced for small stocks. Furthermore,...

The aim of this paper is to provide a survey of some of the problems occurring in portfolio problems with power utility, Non-Gaussian interest rates, and/or unbounded market price of risk. Using stochastic control theory, we solve several portfolio problems for different specifications of the...

Die Dissertation besteht aus drei thematisch zusammenhängenden Forschungspapieren, in denen zeitstetige Konsum-, Investment- und Versicherungsprobleme über den Lebenszyklus betrachtet werden. Ein besonderer Fokus liegt auf realistischen Features wie stochastischem Sterberisiko und...

In a continuous-time framework, the issue of how to delegate an investor's portfolio decision to a portfolio manager is studied. First, we solve the first-best problem. For the second-best case, a specific quadratic contract is introduced resolving the agency conflict completely in the sense...

This paper studies a dynamic stochastic general equilibrium model involving climate change. Our frame- work allows for feedback effects on the temperature dynamics. We are able to match estimates of future temperature distributions provided in the fifth assessment report of the IPCC (2014). We...

This paper studies the relation between firm value and a firm's growth options. We find strong empirical evidence that (average) Tobin's Q increases with firm-level volatility. The significance mainly comes from R&D firms, which have more growth options than non-R&D firms. By decomposing...