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...

The exchange of taxpayer-specific information between national tax authorities has recently emerged as a key and controversial topic in international tax policy discussions, most notably with the OECD's harmful tax practices project and the EU's savings tax initiative. This paper analyzes the...

The sharing between national tax authorities of taxpayer-specific information has emerged over the last few years as a—probably ‘the’—central issue on the international tax policy agenda. Yet this refocusing of the debate on international taxation—away from parametric tax coordination...

The theoretical analysis of tax progressivity has proceeded on the unrealistic assumption that tax liability is never zero, thereby precluding a systematic examination of the progressivity effects of such basic tax reforms as an increase in personal allowances. This paper extends the core...

This paper explores the causes and consequences of the remarkable rise of the value added tax (VAT), asking what has shaped its adoption and, in particular, whether it has proved an especially effective form of taxation. It is first shown that a tax innovation, such as the introduction of a VAT,...

Capital income taxes are liable to affect both capital accumulation and performance in world product markets. International comparisons of effective marginal rates of capital income taxation have consequently come to attract considerable policy interest. This paper develops some principles for...

This paper evaluates the nature and extent of, and possible responses to, two of the central challenges that globalization poses for revenue mobilization in Sub-Saharan Africa (SSA): from corporate tax competition, and from trade liberalization. It does so using a new dataset with features...