The Political Impact of Trade in Chiefdoms
Trade theories of state formation have failed to specify trade as market behavior, and to appreciate the political role of imported luxury goods in chiefdoms. When luxury goods and other valuable commodities become available through the market rather than through interpersonal, chiefly exchanges, the elite's power depends increasingly on economic exploitation and the control of arms. Archaeological data from several locales illustrates the disruptive and formative effects of trade diasporas in chiefdoms.
Schortman, Edward and Smitth Kipp, Rita, "The Political Impact of Trade in Chiefdoms" (1989). American Anthropologist 91(2): 370-385. Faculty Publications. Paper 24.