12 IZA Discussion Papers
IZA Discussion Paper No. 17397
IZA Discussion Paper No. 15372
published in: Journal of Economic Behavior & Organization, 2022, 200, 332-357
IZA Discussion Paper No. 13509
IZA Discussion Paper No. 13472
IZA Discussion Paper No. 12575
IZA Discussion Paper No. 10571
published in: Bruce Seaman and Dennis Young (eds.), Handbook of Research on Nonprofit Economics and Management, 2nd ed., Northampton, MA: Edward Elgar, 2018, pp. 146-179
IZA Discussion Paper No. 10245
published in: Economics Letters, 2016, 147, 160-163.
IZA Discussion Paper No. 5057
published in: American Economic Review, 2013, 103 (2), 1054-70
IZA Discussion Paper No. 4011
revised version published in: Journal of the Royal Statistical Society, Series A (Statistics in Society), 2011, 174 (1), 63 - 81
IZA Discussion Paper No. 2839
published in: Review of Income and Wealth, 2009, 55 (1), 166–185
IZA Discussion Paper No. 500
published in: Economics Letters, 2003, 78 (3), 385-394