Title: Essays on tax policy and tax compliance
Description: Taxes by their very nature bring the citizen and government together and the implementation tax laws depend on the ability of governments to exercise that power. Hence, institutional considerations and non-compliance are central to the design of tax policy; however there is limited research in this area. The three essays of this dissertation is my contribution to the study of tax policy and tax compliance. The first essay models the design of tax policy when different sectors of the economy comply differently with the tax laws. It suggests that for full compliance, tax rates should be lower for sectors with higher levels of informality. It then models the design of an optimal tax policy based on setting of a revenue maximizing single rate of tax and predicts the compliance among sectors under such a policy. Finally, the essay extends the model to include tax evasion whereby the tax evader can launder income through tax exempt sectors and uses it to solve the problem of the optimal inclusion of tax sectors into the tax net.

The second essay examines the effect of the changes in tax rates on taxable income for Indian taxpayers. This study uses the removal of full tax exemption for income from exports in the year 2000 to examine their response. It further disaggregates this response in a manner that allows us to measure the extent of the tax avoidance and tax evasion for these taxpayers. Evidence shows that with the removal of tax benefits, even while sales, exports and investment was unaffected, net-profits fell by more than half. When combined with evidence of large-scale tax evasion during this period using fake bills to artificially raise expenses and lower taxable income, the conclusion that can be drawn is that most of the response to the rise in tax rates has been outright evasion, though there is some evidence of tax avoidance. The resulting elasticity of taxable income with the net-of-tax rate is far higher than conventional estimates for other countries. The policy implications are discussed.

The third essay analyzes the effect of the change in the dividend taxation in India on dividend payout by exploiting the policy change in 2000-01 that doubled the tax rates on dividends. This paper has found evidence of significant short term response to the tax rise unlike previous studies on India which found that taxes did not affect dividend payout in a significant way. A major part of the response was the early payment of the dividend to avoid the higher tax liability. Despite the fact that corporations could avoid the higher tax liability completely, some corporations continued to declare dividend during this period and seem unaffected by the tax change lending strong credence in their case to the signaling aspect of dividend distribution.
Subjects: Taxation, Law and legislation, Taxpayer compliance