This paper confronts Greenwald's model of adverse selection in the labour market, with Topel and Ward's model of job shopping. According to Greenwald's contribution, in a sequence of periods, workers' freedom to change jobs is seriously reduced by a process of adverse selection. The labour...

Il problema dell'informazione asimmetrica nel mercato del lavoro e' stato affrontato ripercorrendo la letteratura relativa agli sviluppi dei modelli di salari di efficienza, nelle varie categorie di selezione avversa, azzardo morale e segnalazione. Per ognuna di queste categorie sono stati...

The paper analyses the labour market in a framework of New Keynesian Economics (NKE). The aim of the NKE is to provide micro foundations to the main result of the Keynesian model, that is the rigidity of prices and wages as well as the presence of non market clearing equilibria. In the first...