Exchange and the problem of order in the social sciences: an introduction to this book -- An exchange economy with legally binding contract -- Specialization, exchange externalities, and contract law: a graph-theoretic approach -- Hadley v. Baxendale and the expansion of the middleman economy -- A theory of the ethnically homogeneous middleman group: an institutional alternative to contract law -- The economics of symbols, clan names, and religion / Jack L. Carr and Janet T. Landa -- The enigma of the Kula Ring: gift-exchanges and primitive law and order -- Socioeconomic organization of honeybee colonies / Janet T. Landa and Anthony Wallis -- Toward a theory of the emergence, evolution, and functions of exchange institutions in achieving ordered anarchy