This paper presents 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 between second earner wage differences, variation in the price of child care and...

Analyzing a homogenous household setting with endogenous fertility and endogenous labor supply, we demonstrate that moving from joint taxation to individual taxation and adapting child benefits so as to keep fertility constant entails a Pareto improvement. The change is associated with an...

We estimate the responses of gross labor income with respect to marginal and average net-of-tax rates in France over the period 2003-2006. We exploit a series of reforms to the income-tax and payroll-tax schedules affecting individuals who earn less than twice the minimum wage. Our estimate for...

Staatliche Instrumente zur Einkommenssicherung im Niedriglohnbereich durch 'Kombilohn-Modelle' existieren auch in Deutschland schon seit längerem und wurden im Zuge der jüngsten Arbeitsmarktreformen ausgeweitet. Aktuelle Reformvorschläge für Deutschland zielen zum einen auf die...

This paper extends the Mirrlees (1971) model of optimal non-linear income taxation with a monitoring technology that allows the government to verify labor effort at a positive, but non-infinite cost. Monitored individuals receive a penalty, which increases if individuals earn a lower income...

Does the timing of labour earnings taxation encroaches upon capital income taxation and individual risk-taking investment decisions, i.e. portfolio selection? This paper presents the results of a laboratory experiment that is, contrary to previous approaches, not restricted to the analysis of...

This paper presents an approach for the estimation of welfare effects of tax policy changes under heterogeneity in consumer preferences. The approach is applied to evaluate the welfare effects of current tax advantages for electric vehicles supplied as fringe benefits by employers. Drawing on...

Since 2002 the German government seeks to stimulate private retirement savings by means of special allowances and tax exemptions - the so-called Riester scheme. We apply matching and panel regression techniques to assess the impact of the Riester scheme on households' propensities to save in a...