Productivity dispersion across firms is large and persistent, and worker reallocation among firms is an important source of productivity growth. The purpose of the paper is to estimate the structure of an equilibrium model of growth through innovation that explains these facts. The model is a...

In this paper we consider a risk averse worker who is moving back and forth between employment and unemployment; layoffs are random and beyond the worker's influence, while the re-employment chance is directly affected by search effort. We characterize the worker's optimal savings and job-search...

This note presents evidence of the following gender asymmetry: the job-finding effort of married men and women is affected by the income of their spouses in opposite directions. For women, spouse income influences job finding negatively, just as own wealth does: the more the man earns and the...

In this paper we consider a risk averse worker who is moving back and forth between employment and unemployment; layoffs are random and beyond the worker's influcence, while the re-employment chance is directly affected by search effort. We characterize the worker's optimal savings and...

Shimer (2005a) argues that the Mortensen-Pissarides equilibrium search model of unemployment explains only about 10% of the response in the job-finding rate to an aggregate productivity shock. Some of the recent papers inspired by his critique are reviewed and commented on here. Specifically, we...