5 IZA Discussion Papers
IZA Discussion Paper No. 12286
IZA Discussion Paper No. 10297
IZA Discussion Paper No. 9206
published in: American Journal of Agricultural Economics, 2018, 100 (4), 1012–1031
IZA Discussion Paper No. 9065
IZA Discussion Paper No. 5229
published in: International Review of Economics and Finance, 2010, 19, 662-670