Abstract
Few major corporations are single business entities; rather, they are organizations that target many product-market combinations. Although academia has shown great interest in diversification and mergers and acquisitions, the management of multi-business portfolios, also known as corporate portfolio management (CPM), has received considerably less attention since the 1980s. This raises the question of why. Reviewing the scholarly literature on CPM we investigate the reasons for this disinterest and suggest a future research agenda for management scholars in this important domain.