It is a good practice to mention all the people who contributed to the creation of a scientific publication in the preface - in a way, this is also a form of employee participation. Therefore, I would like to thank Professor Dr. Karl-Friedrich Ackermann for his guidance and critical discussions, and Professor Dr. Michael Reid for being a co-reporter. My colleagues at the Institute of Business Administration, Horst Blumenstock, Mathias Hofmann, Dr. Günter Hoss, and Peter Rothenberger, have helped me rise again after many setbacks. I thank them as well as the research assistants Hans-Joachim Arnold and Harald Glaser for their excellent data management, Mr. and Mrs. Musick from the eponymous writing office in Stuttgart, Mr. Lezius from AGP, and the many individuals who contributed by filling out questionnaires or as members...