We study the role of cognitive ability for individuals’ tax responsiveness using linked administrative tax and military enlistment registers. Our main finding is that individuals in the top decile of the ability distribution react twice as strong to a large and salient kink point in the...

According to the traditional public finance literature any tax instrument other than the lump-sum tax is inherently distortionary because it alters relative prices. This paper revisits the case of the labor income tax and shows that its supposedly distortionary effects are the result of a...

This applied theoretical paper finds that in-work benefits recipients tend to increase labor income, regardless of the benefits' structure. A theory, the fixed cost of living, is used to explain this finding. Several applications of this theory are given. First, a critical review shows why the...

This paper presents for the first time the properties of optimal piecewise linear tax systems for two-earner households, based on joint and individual incomes respectively. A key contribution is the analysis of the interaction of second earner wage differences, variation in prices of bought-in...

The Mirrlees Review of the UK tax system, together with its companion volume of research papers, can be expected to influence future discussions of tax reform. Indeed, this can already be recognised in the Henry Review. As far as income taxation is concerned, the most substantive recommendation...

The literature on optimal income taxation has operated on the assumption that wage rates are generated exogenously by innate ability and therefore do not respond to behavior and taxation. This is in stark contrast to a large empirical literature documenting a strong effect of work effort on...

This paper examines whether investment in a risky asset depends on future circumstances. We conduct a laboratory experiment where subjects have the opportunity to invest earned income in a risky asset and, depending on randomly assigned treatment states, have the opportunity to respond to the...