4 IZA Discussion Papers
IZA Discussion Paper No. 10297
published in: World Bank Research Observer, 2018, 33 (1), 65–102,
IZA Discussion Paper No. 4572
published in: Economics of Education Review, 2010, 29 (5), 783-794
IZA Discussion Paper No. 2453
published in: International Journal of the Economics of Business, 2007, 14(2), 197-214
IZA Discussion Paper No. 1741
published in: Finanzarchiv, 2007, 63 (2), 211-243