Corporate boards play a central role in corporate governance and are thus regulated in the corporate law and corporate governance codes of all industrialized countries. Yet while there is a common core of rules on the boards considerable differences remain. These differences depend partly on shareholder structure, partly on historical, political and social developments and especially employee representation on the board. More recently, in particular with the rise of theinternational corporate governance code movement, there is a clear tendency towards convergence, at least in terms of the form