Tax laws and administrations often treat different size firms differently. There is, however, little research on the consequences. As modeled here, oligopolists with different efficiencies determine the size distribution of firms. A government that maximizes a weighted sum of consumer surplus,...

This paper provides an overview of full and partial allowance for corporate equity (ACE) tax systems in practice. In the recent past, ACE systems have been used in Austria, Croatia, and Italy. Brazil still applies a variant of such a system and Belgium introduced one this year. This paper...

This paper provides an overview of the key economic factors that shape tax policy reform in many high-income countries, developing countries, and/or transition economies. The paper describes and evaluates global and regional developments with respect to tax rates and revenue ratios over the last...

Does the reliance on diversified tax structure enhance resilience to fiscal risks? This paper gives an answer to this question by proposing a new cross-country tax revenue diversification index (RDI). The RDI builds on the Theil index, and unlike the few existing tax diversification indices,...

There is a growing debate on the relative merits of universal and targeted social assistancetransfers in achieving income redistribution objectives. While the benefits of targeting areclear, i.e., a larger poverty impact for a given transfer budget or lower fiscal cost for a givenpoverty impact,...

This paper assesses a possible explanation for the global downward trend in top personal income tax rates over the last decades: globalization and the related tax evasion and avoidance opportunities could have raised elasticities of taxable income, which would imply lower optimal tax rates. The...

The paper provides a critical review of the literature on the concept of progressivity in thetaxation of petroleum and mineral resources and offers a fresh perspective on its purpose andmeasurement. Regressive taxes, such as royalties, exist to satisfy policy objectives other thanrevenue...

Using administrative tax records for UK businesses, we document both bunching in annual turnover below the VAT registration threshold and persistent voluntary registration by almost half of the firms below the threshold. We develop a conceptual framework that can simultaneously explain these two...

This paper suggests that the environmental and commercial features of shale gas extraction do not warrant a significantly different fiscal regime than recommended for conventional gas. Fiscal policies may have a role in addressing some environmental risks (e.g., greenhouse gases, scarce water,...

Structural transformation has resulted in an increasing share of services in aggregate value-added in advanced and developing countries across the world. We analyze the impact of this shift into services on countries' efficiency in collecting the value-added tax (VAT). The analysis is based on...