We analyze the optimal nonlinear income tax schedule when taxpayers earn multiple in- comes and differ along many unobserved dimensions. We derive the necessary conditions for the government's optimum using both a tax perturbation and a mechanism design approach, and show that both methods...

We study the optimal taxation of risk-free and excess capital income with heterogeneous rates of return, alongside an optimal nonlinear earnings tax. Households can hold three assets: one risk-free, one risky but diversifiable, and one a private investment with idiosyncratic risk whose expected...

In the absence of a global carbon price, many individual countries set up policies to incentivize specific abatement interventions. In turn, minimizing compliance cost requires policy-makers to identify interventions that are worth pursuing. With this in mind, the objective of this paper is to...

The transport sector is one of the important components of economic systems. Besides positive effects, it is also a source of external costs transferred to other entities. Through the evaluation of current settings of the tax base and parameters of the road tax rate progressivity it was...

Some of the European Union member states try to tackle the issue of CO2 emissions generated by the transport sector through environmental registration taxes. The aim of the present research is to ascertain whether they use distorting and unfair parameters represented, in particular, by graduated...

Wir vergleichen den Einfluss von zwei unterschiedlichen steuerpolitischen Strategien - eine dauerhafte Senkung der Unternehmenssteuerbelastung (etwa des Körperschaftsteuersatzes) und temporäre steuerliche Investitionsanreize (etwa durch Sonderabschreibungen). Dabei greifen wir sowohl auf die...

We study the introduction of a price floor for alcohol that is aimed at correcting for negative consumption externalities. Policy effectiveness depends on whether the measure achieves large reductions in the most socially costly consumption. We exploit a natural experiment to show the policy...

This paper studies the design of sin taxes when firms exercise market power. We outline an optimal tax framework that highlights how market power impacts the efficiency and redistributive properties of sin taxation, and quantify these effects in an application to sugar-sweetened beverage...

The spread of value-added tax (VAT) in developing countries has been dramatic since the beginning of 1990's. Adopted by more than 130 countries, including many of the poorest, VAT has been, and remains, the key of tax reform in many developing countries. While adopting VAT, there are arguments...