This lecture is a tour dhorizon of the financial crisis aimed at extracting lessons for future financial regulation. It combines normative recommendations based on conventional welfare economics with positive assessments of the kind of measures likely to be adopted based on political economy...

Purpose Working time accounts (WTAs) allow firms to smooth hours worked over time. The purpose of this paper is to analyze whether this increase in flexibility has also affected how firms adjust employment in Germany over the business cycle. Design/methodology/approach This paper uses rich...

We characterize efficient allocations and business cycle fluctuations in a labor selection model. Due to forward-looking hiring and labor supply decisions, efficiency entails both static and intertemporal margins. We develop welfare-relevant measures of marginal rates of transformation and...

This paper examines the implications of different types of employment subsidies for employment, welfare, and inequality. It investigates how these effects depend on what target groups the subsidies address. Our analysis focuses on policies that are "approximately welfare efficient" (AWE), i.e....

We characterize efficient allocations and business cycle fluctuations in a labor-selection model. Due to forward-looking hiring costs and labor supply decisions, efficiency entails both static and intertemporal dimensions. We develop welfare-relevant measures of marginal rates of transformation...

Our paper documents the importance of workers' ex-ante heterogeneity for labor market dynamics and for the composition of the unemployment pool. We show that workers with high wages have both lower separation rates and larger log-deviations of these separations over the business cycle than those...

The thesis analyzes monetary and labor policies under different market frictions. In the first part several versions of a microfounded dynamic general equilibrium model with monopolistic competitors in the product and/or labor market are derived and simulated. First of all, the monetary...