Milton Friedman

From Brad DeLong writing in Salon:

Friedman's thought is, I believe, best seen as the fusion of two strong and very American currents: libertarianism and pragmatism. Friedman was a pragmatic libertarian. He believed that -- as an empirical matter -- giving individuals freedom and letting them coordinate their actions by buying and selling on markets would produce the best results. It was not that he thought this was a natural law. He didn't believe that markets always worked best. It was, rather, that he believed that places where markets failed were atypical; that where markets failed there were almost always enormous profit opportunities from entrepreneurial redesign of institutions; and that the market system would create new opportunities for trade that would route around market failures. Most important, his distrust of government told him that government failure was pervasive, and that any expansion of government beyond the classical liberal state would be highly likely to cause more trouble than it could solve.

[AF]