In this paper, we develop a dynamic model of firm-level bargaining, along the lines of Manning (1993). In this context, we provide a firm level wage equation that explicitly accounts for firm heterogeneity. This wage equation explains inter-firm wage differentials by differences in labour...

We analyze optimal taxation in an economy with monopsonistic labour markets. The individuals, whose only decisions are whether to work, or not, have heterogeneous productivities and opportunity costs of work. Given its preferences for redistribution, the government, which does not observe the...