Why do some companies thrive while others in the same industry languish? How can a struggling firm achieve higher annual earnings? What allows new corporations to become successful in highly competitive industries? In this book, now updated and expanded, Sharon Oster shows that combining a sound understanding of economic and managerial principles can make a striking difference in the quality of the strategic planning of an organization and provide guidelines for effective corporate strategies. The third edition of Modern Competitive Analysis includes new material on game theory, added value analysis, and strategic intent.