Herbst, Patrick; Walz, Uwe - 2009
. Volker Wieland, Ph.D.
1 Goethe University Frankfurt, Department of Economics – Industrial Organization, Grueneburgplatz 1 … Economics – Industrial Organization, Grueneburgplatz 1, 60629 Frankfurt,
Germany; e-mail: uwe.walz@wiwi.uni-frankfurt.de
CFS …