A recent Spanish tax reform granted regions the authority to set income tax rates, resulting in substantial tax differentials. We use individual-level information from Social Security records over a period of one decade. Conditional on moving, taxes have a significant effect on location choice....

State borders create a discontinuous tax treatment of retail sales. In a Nash game, local tax rates will be higher on the low-state-tax side of a border. Local taxes will decrease from the nearest high-tax border and increase from the low-tax border. Using driving time from state borders and all...

A simple theory suggests that a common form of federal horizontal equalization grants should cause subnational governments to levy higher tax rates, distorting local tax bases and so increasing federal transfers. To test this, I examine Canadian provincial tax policies in the 1972-2002 period....

This paper analyzes whether changes in the timing of equalizing transfers to state governments necessitate an adjustment in federal corrective policy. According to the existing literature (assuming an ex-ante choice of transfers), the corrective grant is equal to the marginal damage/benefit...

The Mirrlees Review recommends that commodity taxation should in general be uniform, but with some goods consumed in conjunction with labour supply (such as child care) left untaxed. This paper examines the validity of this claim in an optimal income tax framework. Contrary to the recommendation...

We present a conceptual framework for the analysis of politically feasible tax reforms. First, we prove a median voter theorem for monotonic reforms of non-linear tax systems. This yields a characterization of reforms that are preferred by a majority of individuals over the status quo and hence...

This study aims at contributing to the ongoing debates on the bracket creep, whether Germany needs an integration of inflation indexation into its personal income tax system in order to reduce distortions of tax liabilities and additional tax burdens. On the other hand, Germany has continuously...

We study the optimal nonlinear income tax problem with multidimensional individual characteristics on which taxes cannot be conditioned. We obtain an optimal tax formula that generalizes the standard one by averaging, with specific weights, the sufficient statistics of individuals who earn the...

There is often a gap between the prescriptions of an 'optimal' tax system and actual tax systems, some of which can be neither efficient economically nor efficient at redistributing income. With a focus on personal income taxes, this paper reviews the political economics literature on tax...