The Power of Productivity

William W. Lewis's 2004 book, based on his McKinsey Global Institute research, argues that productivity growth — not trade, fiscal policy, or industrial policy — is the single real driver of rising living standards, and that the key to generating it is competition. Lewis, a former McKinsey director, analyzes productivity across countries and industries, showing that the same mechanisms — deregulation, privatization, openness to foreign competition, and flexible labor markets — consistently produce faster productivity growth. The book is a data-driven argument that productivity has been neglected by policymakers focused on the wrong levers.

Andreessen included this in his "It's Time to Build" companion book thread, calling it an argument for "how technology-driven productivity growth improves human welfare and creates more jobs and higher wages." For a founder, Lewis's message is the economic justification for what you are doing. Productivity growth means same inputs produce more output: higher wages, lower prices, better products. Every startup that automates, optimizes, or streamlines a process contributes directly to it.

The book's most important lesson for a founder is that competition, not capital investment, forces productivity gains. Companies do not become efficient because they are well-managed. They become efficient because a competitor threatens their business, and they must improve or die. A founder entering a protected or concentrated industry should expect political resistance from incumbents who have never had to compete. Conversely, a founder in a competitive market will find that survival depends on continuously improving productivity — and that discipline builds great companies. Lewis provides the macroeconomic case that the startup founder is the main character in the story of rising living standards.