This paper studies the tax treatment of couples. We develop two different approaches. One is tailored to the analysis of tax systems that stick to the principle that the tax base for couples is the sum of their incomes. One is tailored to the analysis of reforms toward individual taxation. We...

We analyze how the combined effect of automatic stabilizers and discretionary changes in taxbenefit systems have affected the cushioning of income shocks in the Euro zone and the EU-27 in the period 2007-2014. We propose a new summary measure of the combined effect of automatic stabilizers and...

We develop and estimate a model of jointly optimal income taxes for different types of income. Compared to standard optimal tax formulas, optimal schedular income tax rates additionally depend on cross-elasticities between tax bases capturing fiscal externalities. We discuss two applications:...