1. The document discusses corporate-level strategy and the importance of strategic decisions about which businesses a firm should enter and how the corporate office should manage business units.
2. It describes different levels of diversification from single-business strategies to unrelated diversified strategies. Reasons for diversification include accessing resources, responding to incentives, and satisfying managerial motives.
3. Value-creating diversification strategies involve related diversification through sharing activities or transferring core competencies between related businesses, or unrelated diversification through efficient internal capital allocation or restructuring.