The optimal income tax problem, since it requires self-selection constraints which define nonconvex feasible sets, is one of the many problems in economics for which randomization in the solution may be desirable. For a two-class economy. we characterize the optimal random tax schedules and we...

The optimal income taxation problem has been extensively studied in one-period models. This paper analyzes optimal income taxation when consumers work for many periods. We also analyze what information, if any, that the government learns about abilities in one period can be used in later periods...

We analyze the effects of changes in dividend tax policy using a life-cycle model of the firm, in which new firms first access equity markets, then grow internally, and finally pay dividends when they have reached steady state. In accordance with the traditional view of dividend taxation, new...

This paper explores the implications for less developed countries the hypothesis that workers' productivity depends on the wages they receive. In particular, we show that this hypothesis may explain the high urban wages and unemployment found in many such countries. The market equilibrium is...

This paper explores the interaction between incentives, information, and organizational design. It argues that the virtues of the market economy do not lie so much in the vision of competition and decentralization embodied in the Arrow-Debreu model, or the Lange-Lerner-Taylor analysis of market...

In this paper, we investigate the descriptive and normative properties of competitive equilibrium with moral hazard when firms offer "price contracts" which allow clients to purchase as much insurance as they wish at the quoted prices. We show that a price equilibrium always exists and is one of...

When Russia launched mass privatization, it was widely believed that it would create a powerful constituency for the rule of law. That didn't happen. We present a dynamic equilibrium model of the political demand for the rule of law and show that beneficiaries of mass privatization may fail to...

This paper reviews and puts into perspective recent work reassessing the first and second Fundamental Theorems of Welfare Economics. It assesses the implications of the Greenwald-Stiglitz theorem establishing the (constrained) Pareto inefficiency of market economies with imperfect information...

This paper formulates a simple model of "perfect community competition." It is shown that (1) the equilibrium is Pareto optimal; (2) communities will, in general, be heterogeneous; not all individuals will have the same tastes; but (3) all individuals of a given skill within the community will...

This paper considers two sets of theories attempting to explain wage rigidities and unemployment: implicit contract theory and the efficiency wage theory. The basic thesis of the paper is that the former set of theories do not provide a convincing explanation of the kind of wage rigidity which...