We develop a macroeconomic model with physical and human capital, human capital risk, and limited contract enforcement. We show analytically that young (high-return) households are the most exposed to human capital risk and are also the least insured. We document this risk-insurance pattern in...

Empirical studies show that job search behavior depends on the financial situation of the unemployed. Starting from this observation, we ask how unemployment insurance policy should take the individual financial situation into account. We use a quantitative model with a realistically calibrated...

shocks.

We study optimal capital taxation in a dynamic Mirrleesian model with time-nonseparable preferences. The model covers the widely used cases of habit formation and durable consumption. Time-nonseparable preferences change labor supply incentives across time and thereby generate novel motives to...

We prove existence, monotonicity and differentiability of firm profits and provide first-order conditions that characterize the properties of the optimal contract. We demonstrate how the shape of the contract depends on the persistence and variance of the productivity process, on worker and firm...

This paper documents a new set of stylized facts on the joint distribution of labor and capital productivity across plants. We exploit panel data from Germany, Chile, Colombia and Indonesia and show that the basic patterns are similar in all economies. Decomposing factor productivities into high...

This paper examines the effects of changes in uncertainty of household income on the macroeconomy. Households face substantial idiosyncratic income risk that is up to two orders of magnitude larger than total factor productivity uncertainty, very persistent and varies substantially over the...

real option value effect of time-varying uncertainty.

calibration of these models.

This paper develops a tractable dynamic microeconomic model of migration decisions that is aggregated to describe the behavior of interregional migration. Our structural approach allows to deal with dynamic self-selection problems that arises from the endogeneity of location choice and the...