In Competitive Advantage: Creating and Sustaining Superior Performance, Porter describes how firms can actually create and sustain a competitive advantage in their industry. Competitive Advantage shows managers how to evaluate their competitive position and implement the specific action steps necessary to improve it.
The definitive work presents the concepts and the tools needed to create a competitive advantage in cost or differentiation. It shows how the choice of competitive scope—the breadth of a firm's activities—plays a leading role in creating competitive advantage.