Stackelberg differential games are useful settings in which optimal government policies can be studied. This paper argues that the analysis of these games involves a key technical issue. In particular, we question the necessity for optimality of one boundary condition invoked in existing...

Optimal tax policies in dynamic models have unappealing features. In particular, optimal tax reform typically involves a large initial accumulation of government assets which is responsible for a large part of the welfare gains from optimal tax reform. In this paper, we investigate the...

In this paper, I characterize the optimal redistribution policy in a simple life-cycle framework with both an intensive and an extensive margin of labor supply. The extensive margin corresponds to the choice of a retirement age. The optimal allocation cannot be implemented in a decentralized...

This paper studies the design of tax systems that implement a planner's second-best allocation in a market economy. An example shows that the widely used Mirrleesian (1976) tax system cannot implement all incentive-compatible allocations. Hammond's (1979) "principle of taxation" proves that any...

We analyse welfare effects of the interactions between the tax system and inflation in Poland and in Ukraine, using the framework developed by Feldstein (1997, 1999). This approach stresses the fact that inflation increases distortions created by the tax system, in particular distortions to...

This paper is concerned with a policy oriented macroeconomic experiment involving an 'international' economy with a relatively small 'home' country and a large 'foreign' country. It compares the economic performance of two alternative tax systems as a means to finance unemployment benefits: a...

This discussion paper led to a publication in <A href="http://www.sciencedirect.com/science/article/pii/S0014292111000912">'European Economic Review'</A>, 56(2) 216-32.<P>This paper is concerned with a policy oriented macroeconomic experiment involving an 'international' economy with a relatively small 'home' country and a large 'foreign' country. It compares the economic...</p></a>

This paper studies the effects of distortionary taxes and public investment in an endogenous growth OLG model with knowledge transmission. Fiscal policy affects growth in two respects: First, work time reacts to variations of prospective tax rates and modifies knowledge formation; second, public...

This paper examines the optimal entry policy toward oligopoly in a global economy. We show that free entry results in too much competition for the world, but each country's corrective tax policy, unless internationally coordinated, proves suboptimal because of international policy spillovers....

The present article generalizes economic literature on the incidence of consumption taxes to general schedules of consumption taxes dependent on price. Previous studies were limited to the cases of per unit and ad valorem taxes. Three main contributions are made. Methodologically, the elasticity...