We develop a life-cycle model of the labor market in which different worker-firm matches have different quality and the assignment of the right workers to the right firms is time consuming because of search and learning frictions. The rate at which workers move between unemployment, employment...

This paper studies the consequences of creative destruction on unemployment in a frictional labor market with on-the-job search. For a benchmark calibration, a 1% increase in growth raises the unemployment rate by 1.72 percentage points in the economy without on-the-job search and by only 0.07...

We show that equilibrium matching models imply that standard estimates of the matching function elasticities are exposed to an endogeneity bias, which arises from the search behavior of agents on either side of the market. We offer an estimation method which, under certain structural assumptions...

We consider the dynamic relationship between product market entry regulation and equilibrium unemployment. The main theoretical contribution is combining a job matching model with monopolistic competition in the goods market and individual bargaining. We calibrate the model to US data and...

New technology embodied in capital equipment can be adopted either through destruction of existing jobs and the creation of new ones or by renovation, updating the job's equipment. Under the assumption that the destruction of jobs generates worker layoffs, we show that higher productivity growth...

Shimer (2005a) argues that the textbook equilibrium search model of unemployment explains less than 10% of the volatility in U.S. vacancies and unemployment when fluctuations are driven by productivity shocks. His paper as well as other recent work inspired by it are reviewed and extended here....

We study the effects of firing taxes on labor market outcomes. These taxes, more common in European markets, include all administrative and procedural costs incurred by the firm. As such, they are independent of the dismissed worker's skill level. We establish that, for young workers,...

Shimer (2005) demonstrated that aggregate productivity shocks in a standard matching model cause fluctuations in key labor market statistics---such as the job-finding rate, the vacancy/unemployment ratio, and the unemployment rate---that are too small by an order of magnitude. This paper shows...

Propagation in equilibrium models of search unemployment is altered when vacancy costs require some external financing on frictional credit markets. The easing of financing constraints during an expansion as firms accumulate net worth reduces the opportunity cost for resources allocated to job...

Previous empirical work on job search has proposed different approaches to estimating mobility rates assumed in models of search. However, these methods either only work for specific models of wage determination, or else require that we know the initial distribution of productivity for workers...