4 IZA Discussion Papers
IZA Discussion Paper No. 14454
IZA Discussion Paper No. 8252
published in: Economics Letters, 2014, 124 (3), 389–391.
IZA Discussion Paper No. 7448
published in: Journal of Urban Economics, 2014, 79, 108-120
IZA Discussion Paper No. 4145
published in: Macroeconomic Dynamics, 2015, 19 (3), 643-668