Most turnover reflects churn, where hires replace departures. Churn varies substantially by employer, industry and worker characteristics. In the LEHD (QWI) data, permanent employer differences account for 36% of the variation in churn. For example, leisure and hospitality turnover is more than...

In this paper, we display the tools and principles of personnel economics through a series of models aimed at addressing the questions posed above. We focus on the building blocks that form the foundation of personnel economics: the assumptions that both the worker and the firm are rational...