6 IZA Discussion Papers
IZA Discussion Paper No. 15826
IZA Discussion Paper No. 11960
IZA Discussion Paper No. 6012
published in: Journal of Development Economics, 2013, 102, 48–61
IZA Discussion Paper No. 5421
published in: China Agricultural Economic Review, 2014, 6(2), 316 - 334
IZA Discussion Paper No. 346
IZA Discussion Paper No. 227
published in: European Economic Review, 2004, 48 (6), 1243-1255