We develop a model for decomposing the covariance structure of panel data on firms into a part due to permanent heterogeneity, a part due to differential histories with unknown ages, and a part due to the evolution of economic shocks to the firm. Our model allows for the endogenous death of...

Does entry regulation hinder job creation? We investigate this question in the context of the French retail industry, a sector that has experienced especially low rates of job creation over the last 25 years. Since the early 70s, the French government has required regional zoning board approval...

In this article, we estimate the costs of hiring, separation, and retirement of employees for a representative sample of French establishments in 1992. The estimates are computed using data from three sources: the Wage Structure Survey (ESS), the Workforce Movement Questionnaire (DMMO), and the...

Our empirical analyses distinguish between flows of workers, directly measured, and job creation and destruction, again, directly measured. We use a representative sample of all French establishments for 1987 to 1990. Our most important findings are that (1) annual job creation can be...