263 IZA Discussion Papers
IZA Discussion Paper No. 444
published in: Jonas Agell, Michael Keen and Alfons Weichenrieder (eds.), Labor Market Institutions and Public Regulation, 2004, 63-100
IZA Discussion Paper No. 397
published in: Ecological Economics, 2005, 55 (4), 515-526
IZA Discussion Paper No. 77