Successful corporate strategies, says this leading professor of management, depend upon dynamic marshaling of a firm's "invisible assets"--information-based resources such as technological know-how, the visibility of a brand name, or knowledge of a customer base--as well as tangible assets such as people, goods, and money. Hiroyuki Itami emphasizes the ways strategy must fit the firm's external environment (customers, competitors, and ever-changing technology) and also the importance of internal fit within the organization. He uses invisible assets as a single organizing concept to discuss...