I consider the efficiency of liability rules when courts obtain imperfect information about precautionary behavior. I ask what tort rules are consistent with socially efficient precautions, what informational requirements the evidence about the parties' behavior must satisfy, what decision rules...

The paper analyses the effect of mother tongue on labor market outcomes of Swiss residents. This type of analysis can shed light on an important policy question. Is the Swiss labor market well integrated, or can one find instead segmentation along language borders? Improving on previous research...

I study the effect of fatigue and innate ability on performance in a model with incomplete contracts, lumpy tasks requiring multiple periods of work and stochastic productivity shocks. I find that increasing ability or reducing fatigue does not lead necessarily to more productive efficiency,...

We consider situations where legal liability yields insufficient incentives for socially efficient behavior, e.g., individuals who cause harm are not always sued or are unable to pay fully for harm done. Some individuals nevertheless behave efficiently because of intrinsic prosocial concerns....

This paper investigates how firms design the maturity of their hedging programs, and the real effects of maturity choice on firm value and risk. Using a new dataset on hedging activities of 150 U.S. oil and gas producers, we find strong evidence that hedging maturity is influenced by investment...

It is shown that rent-seeking contests with continuous and independent type distributions possess a unique pure-strategy Nash equilibrium.

Das Geschehen auf den Finanzmärkten hängt vom individuellen Verhalten ab, wird aber auch wesentlich bestimmt durch die Ausgestaltung des Finanzsystems, das heisst durch die Rollen, die den einzelnen Akteure zugewiesen werden, und durch die Regeln für die Interaktion der verschiedenen Rollen....

We embed learning (without experimentation) in optimal growth. We extend the Mirman-Zilcha results of stochastic optimal growth to the learning case. We use recursive methods to study the effect of learning on the dynamic program by considering the case of iso-elastic utility and linear...