Hans-Werner Sinn, Erkki Koskla, Ronnie Schöb German Economic Review 2, 2001, pp. 19-30, NBER Working Paper No. 6922, February 1999, CEPR Discussion Paper No. 2089, December 1999. German Economic Review 2 (PDF, 1.5 MB)1.48 MB NBER Working Paper No. 6922 (PDF, 335 KB)334.83 KB CEPR Discussion Paper No. 2089 (PDF, 265 KB)264.82 KB