We study optimal capital taxation under limited commitment. We prove that the optimal tax rate on capital income should be positive in steady state and should be increasing over time provided that full risk-sharing is not feasible. In a limited commitment environment, a one unit increase of...

We study optimal capital taxation in a limited commitment environment. Our environment consists of a continuum of households with idiosyncratic labor shocks, who have access to a complete contingent claims market. Financial contracts are not perfectly enforceable; as in Kehoe and Levine (1993),...

This paper studies the effects of a flat-tax reform in a dynamic, general equilibrium model with heterogeneous agents and occupational choice. Each agent has a choice to be a worker or to establish a firm and become an entrepreneur with a limited ability to borrow in financial markets. Because...

Bismarckian social security systems are associated with larger public pension expenditures, a smaller fraction of private pension and lower income inequality than Beveridgean systems. This paper introduces a bidimensional voting model to account for all these features. Agents differ in age,...

We find that the main featues of labor policy across OECD countries can be explained by an equilibrium search model with risk neutral agents and a government that chooses policy to maximize a social welfare function. Optimal policy redistributes income from advantaged to disadvantaged workers. A...

We document the presence of a trade-off between unemployment benefits (UB) and employment protection legislation (EPL) in the provision of insurance against labour market risk. The mix of quantity restrictions and price regulations adopted by the various countries would seem to correspond to a...

Job search is an unpleasant activity with immediate costs and delayed benefits. The tension between long-run goals and short-run impulses may lead unemployed workers to postpone repeatedly tasks necessary to find a job. In standard economic models, agents are assumed to be time-consistent, so...

Tobin's Q exceeds one, even without any adjustment costs, for a firm that earns rents as a result of monopoly power or of decreasing returns to scale in production. Even when there are no adjustment costs and marginal Q is always equal to one, Tobin's Q is informative about the firm's growth...