A guide to current approaches to measuring the effective tax rate, with case studies that illustrate the different methods discussed.Today's highly complicated tax codes have led economists and policy makers depend on simplified summary measures in order to understand how taxes affect the...

Today's highly complicated tax codes have led economists and policy makers depend on simplified summary measures in order to understand how taxes affect the economy. Studies of the effective tax rate--that is, a measurement of the net amount of tax levied on certain economic activities--provide...

The tax bias in favour of debt finance under the corporate income tax means that corporate debt ratios exceed the socially optimal level. This creates a rationale for thin-capitalization rules limiting the amount of debt that qualifies for interest deductibility. This paper sets up a model of...

The theory of optimal taxation has often been criticized for being of little practical policy relevance, due to a lack of robust theoretical results. This paper argues that recent advances in optimal tax theory has made that theory easier to apply and may help to explain some current trends in...

Advances in information technology have improved the administrative feasibility of redistribution based on lifetime earnings recorded at the time of retirement. We study optimal lifetime income taxation and social insurance in an economy in which redistributive taxation and social insurance...