5 IZA Discussion Papers
IZA Discussion Paper No. 13611
IZA Discussion Paper No. 11406
IZA Discussion Paper No. 10278
Revised version available here: http://www.tinbergen.nl/discussionpaper/?paper=2663
IZA Discussion Paper No. 9837
published in Population, Space and Place, 2017, 23 (4)
IZA Discussion Paper No. 5371
Journal of Public Economics, 2011, 95 (3-4), 286-299