3 IZA Discussion Papers
IZA Discussion Paper No. 16251
published in: Economics & Human Biology, 2023, 50,101268
IZA Discussion Paper No. 5644
earlier version published in: Journal of Institutional and Theoretical Economics, 2004, 160 (2), 232-42
IZA Discussion Paper No. 718
final version published in: Journal of Theoretical and Institutional Economics, 2008, 164(4), 612–623