I'm not doing my philanthropic work, out of any kind of guilt, or any need to create good public relations. I'm doing it because I can afford to do it, and I believe in it.

Economic theory is devoted to the study of equilibrium positions. The concept of equilibrium is very useful. It allows us to focus on the final outcome rather than the process that leads up to it. But the concept is also very deceptive. It has the aura of something empirical: since the adjustment process is supposed to lead to an equilibrium, an equilibrium position seems somehow implicit in our observations. That is not true. Equilibrium itself has rarely been observed in real life — market prices have a notorious habit of fluctuating.

We need to maintain law and order. We need to maintain peace in the world. We need to protect the environment. We need to have some degree of social justice, equality of opportunity. The markets are not designed to take care of those needs. That's a political process. And the market fundamentalists have managed to reduce providing those public goods.