In a sector in which oligopolistic firms face a sector-specific labour supply constraint, there may be no marketclearing wage. Instead, at some wages, there can be two equilibria, one with involuntary unemployment and one with unfilled vacancies.

Many emerging or transition economies lack institutional arrangements (like ISO certification) to credibly signal product quality. The absence of such institutions leads to low levels of market activity with poor quality products on sale. In this paper, we use a dynamic framework with asymmetric...

This paper extends the standard Diamond's two-period OLG model of capital accumulation by introducing labor-leisure choice into the first-period of agents' life. Under the assumption of gross substitutability, we show that multiple intertemporal equilibria require both highly complementary...