One of the most striking tax developments in recent years, and one that continues to attract considerable attention, is the adoption by several countries of a form of ""flat tax."" Discussion of these quite radical reforms has been marked, however, more by assertion and rhetoric than by analysis...

Conventional wisdom has it that the value-added tax is not a suitable instrument for lower-level jurisdictions (‘provinces’) in a federal system. The problems that arise when it is so used have become a serious constraint on the development of the VAT—and closer economic integration—in...