We first point out that, using any of the current criteria for comparing information systems in principal-agent models with moral hazard (such as Kim (1994)'s criterion), it is often impossible to contrast the value of information obtained from different policies of contingent audits that bear...

We exploit the common features of models such as union-firm wage bargaining, search and efficiency wage models to develop a framework that can be used for analyzing the effects of any budget-neutral tax reform on employment in these models. We show that taxes paid by workers are not equivalent...