3 IZA Discussion Papers
IZA Discussion Paper No. 9610
published online in: ILR Review, First Published September 3, 2020
IZA Discussion Paper No. 5076
published in: Foundations and Trends in Microeconomics, 2010, 5 (4), 229-299
IZA Discussion Paper No. 2381
published in: R. Vaubel and P. Bernholz (eds.), Political Competition and Economic Regulation, London: Routledge 2007