4 IZA Discussion Papers
IZA Discussion Paper No. 12081
published in: Stata Journal, 2020, 20 (1), 176-235.
IZA Discussion Paper No. 9398
published in: Economic Journal, 2019, 129 (620),1782–1816,
IZA Discussion Paper No. 8916
published in: American Economic Journal: Applied Economics, 2019, 11 (1), 173–201
IZA Discussion Paper No. 6732
published in: Ecological Economics, 2013, 88, 1-10