In this groundbreaking and provocative book, Jonathan Haskel and Stian Westlake argue that the great economic disappointment of the century is the result of an incomplete transition from an economy based on physical capital, and show how the vital institutions that underpin our economy remain geared to an outmoded way of doing business. The growth of intangible investment has slowed significantly in recent years, making the world poorer, less fair, and more vulnerable to existential threats. Haskel and Westlake present exciting new ideas to help us catch up with the intangible revolution, offering a road map for how to finance businesses, improve our cities, fund more science and research, reform monetary policy, and reshape intellectual property rules for the better.