This paper looks at models of unemployment which make two central assumptions. The first is that wages are bargained between firms and employed workers, and that unemployment affects the outcome only to the extent that it affects the labor market prospects of either employed workers or of firms....

This paper shows how one can interpret the joint movements of wages, unemployment and vacancies in the Phillips and Beveridge spaces to learn about the origins of the movements in unemployment. The view of the labor market underlying the conceptual framework emphasizes flows, matching, and Nash...

This paper analyzes the issue of persistent high unemployment. It focuses on two channels of persistence. The first is capital accumulation. The paper analyzes investment decisions under imperfect competition, focusing in particular on the effects of demand and cost shocks on investment, capital...