Abstract:
Supervisory boards within the German corporate governance system have recently received an increasing amount of attention. New recommendations were given and regulation was passed concerning the composition of supervisory boards and their actions. Despite this process of reform, scientific studies on supervisory boards of German companies are scarce.
In the light of these recent developments and the above mentioned research gap, the present work aims to take a closer look at supervisory boards in Germany.
Following the introduction, chapter 2 is devoted to the question of how German supervisory boards are composed in terms of the professional and demographic characteristics of their board members and to the differences in the composition of supervisory boards.
Chapter 3 examines the causes of differences in the heterogeneity of supervisory boards. In detail, it analyzes how company size influences the heterogeneity of supervisory boards with respect to professional and demographic characteristics.
The effects of the heterogeneity of supervisory board composition on board performance and company performance are the focus of chapter 4. In a first step, the relation between board heterogeneity and board performance as well as company performance is examined in general; subsequently, the influence of moderating variables on this relation is analyzed.
Chapter 5 studies the intervention activities of supervisory boards. After presenting the German institutional context of the tasks of supervisory boards and their possibilities of intervention, this chapter provides a detailed empirical survey of the intervention activities of German supervisory boards of a large number of companies over a period of several years.
Finally, chapter 6 analyzes how the market value of publicly traded companies is influenced by the use of different types of intervention. As one of the first studies, this chapter empirically tests two hypotheses by Hermalin/Weisbach (1998) extended to the case of different intervention activities of supervisory boards.
The results of the empirical work presented in these chapters contribute to the research in different areas and reduce the research gap for the German corporate governance system.