Using employer-employee data from Germany, this paper analyzes the relationship between wages and past and contemporaneous labor market conditions. Specifically, we test the implications of implicit contract models (Beaudry and DiNardo, 1991) and an on-the-job search model (Hagedorn and...

Slow firm entry over the business cycle causes measured TFP to vary endogenously because incumbent firms bear shocks. Our main theorem states that imperfect competition and dynamic firm entry are necessary and sufficient conditions for these endogenous productivity fluctuations. The result...