Lockwood, Ben; Keen, Michael - International Monetary Fund (IMF) - 2007
Has the VAT proved, as its proponents claim, an especially effective form of taxation? To address this, this paper … first shows that a tax innovation-such as the introduction of a VAT- reduces the marginal cost of public funds if and only … system of equations describing the probability of VAT adoption and the revenue impact of the VAT. The sign of the revenue …