Ist die Arbeitsnachfragekurve eher steil oder eher flach? Die diesbezüglichen Überlegungen von John Hicks (1932) und Alfred Marshall (1920) haben nichts an Aktualität verloren. Ihre vier Gesetze der Nachfrage sind nach wie vor Ausgangspunkt vieler Studien zur Theorie und Empirie der...

This paper analyzes how trade liberalization influences the unemployment rate of workers with different abilities. We refine the Melitz (2003) framework to account for trade unions and heterogeneous workers, who differ with respect to their abilities. Our main findings are: (i) highability...

Empirical evidence suggests that high-productivity firms face stronger trade unions than low-productivity firms. Then a policy that puts all unions into a better bargaining position is no longer neutral for firm selection as in models with a uniform bargaining strength across firms. Using a...