4 IZA Discussion Papers
IZA Discussion Paper No. 17389
IZA Discussion Paper No. 16141
IZA Discussion Paper No. 10869
published in: Review of Income and Wealth, 2017, 63 (3), 411 - 444.
IZA Discussion Paper No. 2704
published in: Journal of Environmental Economics and Management, 2008, 56 (3), 207-220