5 IZA Discussion Papers
IZA Discussion Paper No. 16614
IZA Discussion Paper No. 14919
IZA Discussion Paper No. 14560
IZA Discussion Paper No. 9770
published in: Industrial Relations Journal, 2016, 47 (5-6), 547-566
IZA Discussion Paper No. 2381
published in: R. Vaubel and P. Bernholz (eds.), Political Competition and Economic Regulation, London: Routledge 2007