1) The document discusses managing multibusiness corporations, which typically use a multidivisional structure with divisions coordinated by a corporate headquarters.
2) It explores how corporate headquarters formulates and implements strategies through managing the business portfolio, allocating resources, strategic planning, controlling business unit performance, and coordinating across businesses.
3) The emergence of the multidivisional structure in the 20th century facilitated the growth of large, diversified, multinational corporations by separating strategic decision making at the corporate level from operational decision making at the divisional level.