4 IZA Discussion Papers
IZA Discussion Paper No. 7233
published in: Journal of Public Economic Theory, 2016, 18 (3), 385 - 416
IZA Discussion Paper No. 5519
published as 'Informality in developing economies: regulation and fiscal policies' in: Journal of Economic Dynamics and Control, 2015, 51, 1–27
IZA Discussion Paper No. 4158
substantially revised version published in: Economic Policy, 2010, 25 (61). 117 - 163
IZA Discussion Paper No. 805
published in: Labour Economics, 2010, 17 (6), 875-885