Several studies show cases where the Samuelson rule holds, or where the marginal cost of public funds (MCF) equals one within optimized tax systems. The conditions for the original Samuelson rule to hold in these studies are quite restrictive, and MCF measures employed are not consistent with...

There still seems to be some confusion about the consequences of normalisations in the optimal taxation litterature. We claim that: 1) Normalisations do not matter for the real solution of optimal taxation problem. 2) Normalisations do matter for good characterisations of the solutions to...

In this note we discuss how to treat taxes in a cost-benefit analysis (CBA). In particular we relate the shadow price of taxes in CBA to the concepts the marginal cost of public funds MCPF) and the marginal excess burden (MEB) of taxes. In particular we demonstrate that the MCPF is equal to one...

This paper extends the Mirrlees (1971) model of optimal income redistribution with optimal corrective taxes to internalize consumption externalities. It is demonstrated that the optimal second-best tax on an externality-generating good should not be corrected for the marginal cost of public...

The paper focuses on the signaling value of a tax when agents are less informed than the government on the effect of their consumption. The policy making process is analyzed as a game in which the government wants to influence consumers' behaviors through tax policy, consumers being rational and...

The paper uses an applied general equilibrium model, calibrated to the situation in Belgium in 1990, to evaluate the welfare effects of small policy changes in the presence of transport externalities. The model incorporates three types of externalities: congestion, which has a feedback effect on...

Belgium has seen major changes in its tax-benefit system over the past twenty years. These changes have, to a large extent, co-determined the evolution of disposable incomes of Belgian households on one hand, and their incentives to work on the other. In this paper we assess equity and...

Recent estimates of the marginal cost of public funds differ substantially. Some studies argue that the efficiency cost of taxation counter the welfare gain connected to redistribution of income. Hence, the efficiency cost of taxation should not be included as a cost of public goods provision....