Corporate governance is concerned with concepts that philosophers label “prescriptive” or action‐guiding. The rules, policies, and other elements of corporate governance are factors that guide and control the firm. Three distinct strains of governance inquiry exist: the economic, the managerial, and the philosophical. The economic approach draws inspiration from economic theory; the managerial approach from the practices and needs of executives, shareholders, and boards of directors; and the philosophical approach from moral concepts. The economic approach dominates current business school research, and the managerial approach dominates the world of practice. The philosophical approach, a newcomer, is gaining ground among scholars. Because of the economic approach's current academic dominance, this entry gives it special attention.