Stefan Schneck Institut für Mittelstandsforschung (IfM) Bonn   Institut für Mittelstandsforschung Bonn Maximilianstr. 20 Bonn, 53111 Germany   Schneck@ifm-bonn.org             JEL Areas: L2 : Firm Objectives, Organization, and Behavior: General L1 : Market Structure, Firm Strategy, and Market Performance: General