Executive behavior is simply what managers do. But what do they do? To answer this question, Kelly reviews the observational studies of managerial behavior made in the 1950s and 1960s by H. Mintzberg and S. Carlson, among others, and updates the record by including research of the 1980s and 1990s. This hard data of scientific observation is compared to and contrasted with the soft data of top manager interviews and CEO biographies, which includes...