We investigate the link between "underemployment at all wages" and income feedback effects due to firms' activities in an economy with imperfect competition in the product markets. The size of income feedback effects negatively depends on the number of product markets. We strengthen a previous...

This paper is about "involuntary unemployment" in general equilibrium models with imperfect competition. It surveys papers written after the seminal work of d'Aspremont, Dos Santos Ferreira and Gerard-Varet (1984). This unemployment is called involuntary because it exists at any wage. It results...