Bischoff, Ivo; Siemers, Lars - 2008
of Business Administration &
Economics • Universitätsstr. 24, D-35032 Marburg
Tel: ++49-6421-2823091, Fax: ++49 …
Joint Discussion Paper
Series in Economics
by the Universities of
Aachen · Gießen · Göttingen
Kassel · Marburg … Economics
E-mail: Ivo.Bischoff@wirtschaft.uni-giessen.de
Lars Siemers
RWI Essen – Institute for Economic Research …