The past two decades have witnessed widespread attempts to reform tax structures in developing countries. As the relatively small formal sector limits the base for taxes on income, the major reform is to replace trade taxes with sales taxes. To the extent that this has involved rationalisation...

The empirical literature on the elasticity of taxable income (ETI) sometimes questions whether estimated values are consistent with being on the revenueincreasing section of the Laffer curve, usually in the context of a single rate tax system or for top marginal rates. This paper develops...