Few fiscal topics are more important than the value-added tax (VAT). Over the last few decades, VAT has swept the world. With the notable exception of the United States most countries around the world now have a VAT. In many developing and transitional countries VAT is the most important single tax. But should every country have a VAT? Is the VAT in place in most countries as good as it should be in economic, equity, and administrative terms? Can it handle the fiscal tasks imposed by trade liberalization and other factors in recent years? Can it deal adequately with the novel issues arising from digital commerce and decentralization? Can it be administered sufficiently effectively by the already hard-pressed revenue administrations of developing and transitional countries?

The answers to such questions are critical not only to fiscal stability in developing and transitional countries but also to their growth and development. Are the VATs now in place in most of these countries the efficient, simple revenue-raisers they are often purported to be? Or are they so inequitable that they may exacerbate social tensions and hence undermine the political equilibrium reflected in a country's fiscal structure? Does VAT provide a feasible way to tap the informal sector? Or may it end up expanding the range of such activities? In this book we consider these and other critical questions about the design and performance of a tax that in recent years has become the mainstay of the revenue system in most developing and transitional countries around the world.