Politicians and tax practitioners often claim that tax uncertainty negatively affects investment. In many countries, firms can request fee-based Advance Tax Rulings (ATRs) to mitigate tax uncertainty. We analyze theoretically the circumstances under which investors request ATRs, how tax...

Loss carryover provisions are an essential part of corporate tax systems. Economic theory suggests that perfect intertemporal loss offsets are a necessary condition for the neutrality of corporate taxation across investment projects with different risk profiles. However, in practice the tax...

A digressive tax such as a variable rate sales tax or a tax on price gives firms an incentive for expanding output. Thus, unlike unit and ad valorem taxes which amplify the harm from monopoly, a digressive tax lessens the harm. We analyse a tax on price with respect to efficiency and practical...

The philanthropic sector is highly consequential, particularly in the United States, and the most important policies directed toward this sector are tax policies. Yet most economic analysis of the optimal tax treatment of charitable giving is ad hoc, treating it as a subject unto itself. This...

This paper provides cross-country empirical evidence on the productivity of bank transaction taxes (BTTs). Our data set comprises six Latin American countries that have levied BTTs since the late 1980s: Argentina, Brazil, Colombia, Ecuador, Peru and Venezuela. We find that, for a given tax rate,...

This Handbook entry presents a conceptual, normative overview of the subject of taxation. It emphasizes the relationships among the main functions of taxation—notably, raising revenue, redistributing income, and correcting externalities—and the mapping between these functions and various...

The literature suggests that the concern for economic efficiency calls for individual-based taxation of married couples with a higher rate on the primary earner. This paper reconsiders the choice of tax unit in the Becker model of household production. In the absence of restrictions on the use...

A dynamic equilibrium model of an economy with underground trade is developed in which agents devote effort to search, building up networks of underground contacts. The model is used to illustrate dynamic responses to tax increases. The model is shown to be consistent with the stylized fact that...

A model is presented for simulating the level of taxes imposed on highly skilled labor. The effective average tax rate, defined as the relative wedge between employment costs and disposable income, is computed. Income and payroll taxes and social security contributions not yielding an equivalent...