In this paper we use a panel of 189 countries to describe the salient trends that have emerged in national personal income tax systems spanning the twenty five year period from 1981 to 2005. Using complete national income tax schedules, we calculate actual average and marginal tax rates at...

Flat tax schemes are popular in Eastern Europe, with an ever increasing number of countries where it is introduced, and yet many other where it is recurringly discussed. Analysing three countries, we show that the design of such schemes largely determines their impact on fiscal revenues and on...