The concept of competitive advantage has taken centre stage in discussions of business strategy. Statements about competitive advantage abound, but a precise definition is elusive. In reviewing the use of the term competitive advantage in the strategy literature, the common theme is value creation.
Various School of Thought: Competitive Advantage
• Porter says “competitive advantage is at the heart of a firm’s performance in competitive markets” and goes on to say that purpose of his book on the subject is to show “how a firm can actually create and sustain a competitive advantage in an industry—how it can implement the broad generic strategies.” Thus, competitive advantage means having low costs, differentiation advantage, or a successful focus strategy. In addition, Porter argues that “competitive advantage grows fundamentally out of value a firm is able to create for its buyers that exceeds the firm’s cost of creating it.”
• Peteraf defines competitive advantage as “sustained above normal returns.” She defines imperfectly mobile resources as those that are specialized to the firm and notes that such resources “can be a source of competitive advantage” because “any Ricardian or monopoly rents generated by the asset will