63 IZA Discussion Papers
IZA Discussion Paper No. 2430
published in: R. Vaubel and P. Bernholz (eds.), Political Competition and Economic Regulation, London: Routledge 2007
IZA Discussion Paper No. 490
published in: Swedish Economic Policy Review, 2002 (9), 47-74
IZA Discussion Paper No. 129
published in: Bassi, L. J./Woodbury, S. A. (eds.), Long-Term Unemployment and Reemployment Policies (Research in Employment Policy, V. 2), Stamford, Conn. (2000), 87-115.