Upon hearing that Ronald Coase had been awarded the Nobel Prize, a fellow economist's first response was to ask with whom Coase had shared the Prize. Whether this response was idiosyncratic or not, I do not know; I expect not. Part of this type of reaction can no doubt be explained by the fact that Coase has often been characterized as an economist who wrote only two significant or influential papers: "The Nature of the Firm" (1937) and "The Problem...