This paper presents an evaluation of the tax-transfer treatment of married couples in 15 EU countries using the EUROMOD microsimulation model. First, we show that many tax-transfer schemes in Europe feature negative jointness defined as a situation where the tax rate on one person depends...

This paper analyzes the optimal design of general nonlinear tax-transfer schedules for couples under unitary and collective approaches to family decision making. We consider a double-extensive model of labor supply where each spouse makes a labor force participation choice for given hours of...