The hidden power of Wal-Mart’s strategy came from a shift in perspective. Lacking that perspective, Kmart saw Wal-Mart like Goliath saw David—smaller and less experienced in the big leagues. But Wal-Mart’s advantages were not inherent in its history or size. They grew out of a subtle shift in how to think about discount retailing. Tradition saw discounting as tied to urban densities, whereas Sam Walton saw a way to build efficiency by embedding each store in a network of computing and logistics. Today we call this supply-chain management, but in 1984 it was as an unexpected shift in viewpoint.
