This article investigates how tax evasion changes the relationship between tax rate, tax revenue, and welfare at the margin. It gives expressions for the marginal tax revenue, the marginal welfare loss, and the marginal cost of public funds and shows that tax evasion may reduce as well as...

This paper calibrates the graduated income tax system currently in place in France while assuming that the number of earning-ability types in the economy is four. It also computes the optimal linear and nonlinear income tax schedules for this economy. Its main finding is that while an optimal...

We explain why wealthy people often favor estate taxation, while wealthless people oppose it. Wealthy people devote part of their estate to charities. Estate taxation with tax breaks for charities increases contributions to an otherwise underprovided public good.

This paper provides a unified treatment of externalities associated with fertility and human capital accumulation within pay-as-you-go pension systems. It considers an overlapping generations model in which every generation consists of high earners and low earners with the proportion of types...