In his new book The Origin of Wealth, McKinsey & Company Senior Advisor Eric D. Beinhocker argues that the traditional view of economics as a static, equilibrium-balanced system is going through a radical rethinking involving a multitude of disciplines. The new spin: “complexity economics,” in which the economy is viewed as a highly dynamic and constantly evolving system that is all but impossible to predict. This excerpt deals with how companies can set strategy when the future is unknowable.

Read the excerpt at Harvard Business School Working Knowledge