3 IZA Discussion Papers
IZA Discussion Paper No. 3965
completely different version published as 'Optimal tax and transfer programs for couples with extensive labor supply responses' in: Journal of Public Economics, 2011, 95 (11-12), 1485-1500
IZA Discussion Paper No. 3819
IZA Discussion Paper No. 3109
published in: CESifo Economic Studies, 2011, 57 (2), 216-244