2 IZA Discussion Papers
IZA Discussion Paper No. 14032
revised version published as 'The political cost of sanctions: evidence from COVID-19' in: Health Policy ,2022, 126 (9), 872-878
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