Die Arbeitserlaubnis ist das wichtigste Instrument zur Kontrolle des Arbeitsmarktzugangs von ausländischen Immigranten. Die Erteilung einer allgemeinen Arbeitserlaubnis wird - unter Beachtung des Anwerbestopps - normalerweise nur dann vorgenommen, wenn kein Deutscher oder gleichberechtigter...

We analyze how agents' present bias affects optimal contracting in an infinite-horizon employment setting. The principal maximizes profits by offering a menu of contracts to naive agents: a virtual contract - which agents plan to choose in the future - and a real contract which they end up...

This study provides empirical evidence for the economic rationality of wage rigidities. Theoretically wage rigidities can result from contracts, implicit contracts, from efficiency wages and from insider-outsider behaviour. Based on a survey of 801 firms strong support has been found for...