52 IZA Discussion Papers
IZA Discussion Paper No. 5195
published in: The Quarterly Journal of Economics, 2013, 128 (1), 287-336
IZA Discussion Paper No. 4201
published in: Applied Economics Quarterly, 2009, 55 (2), 107-120
IZA Discussion Paper No. 3809
revised version published as 'Proxying for Unobservable Variables with Internet Document-Frequency' in: Journal of the European Economic Association, 2013, 11 (1), 137–165
IZA Discussion Paper No. 3705
published in: David Autor (ed.), Studies of Labor Market Intermediation, Chicago: University of Chicago Press, 2009
IZA Discussion Paper No. 3666
published in: American Journal of Economics and Sociology, 2009, 68 (2), 413-426
IZA Discussion Paper No. 3321
superseeded by IZA DP 5575 and the published version.
IZA Discussion Paper No. 2206
published in: Review of International Economics, 2010, 18 (1), 153 - 167
IZA Discussion Paper No. 1755
published in: Review of Economics of the Household, 2007, 5 (2), 129-157
IZA Discussion Paper No. 1646
published as 'The economics of altruistic punishment and the maintenance of cooperation' in: Proceedings of the Royal Society B -Biological Sciences, 2008, 275 (1637), 871-878
IZA Discussion Paper No. 1305
published in: Oxford Economic Papers, 2007, 59 (1), 16-44
IZA Discussion Paper No. 1260
IZA Discussion Paper No. 613
published in: American Economic Review, 2004, 94 (1), 218-232