The technological dynamism of capitalism has always been a powerful argument in its defense. But one of its secrets is that at the heart of this change we find neither bold entrepreneurs, venture capitalists, nor established firms.

Investments pushing the frontiers of scientific knowledge are just too risky. The advances sought may not be forthcoming. Those that do occur may not ever be commercially viable. Any potentially profitable results that do arise may take decades to make any money. And when they finally do, there are no guarantees initial investors will appropriate most of the resulting windfall.

There is, accordingly, a powerful tendency for private capital to systematically underinvest in long-term research and development. Despite popular perceptions that private entrepreneurs drive technological innovation, the leading regions of the global economy do not leave the most important stages of technological change to private investors. These costs are socialized.