The spontaneous individual optimization that drives the theories with which I began is important, but it is not enough by itself. If spontaneous Coase‐style bargains, whether through laissez-faire or political bargaining and government, eliminated socially wasteful predation and obtained the institutions that are needed for a thriving market economy, then there would not be so many grossly inefficient and poverty-stricken societies.

"Big Bills Left on the Sidewalk: Why Some Nations Are Rich, and Others Poor"