In reply to Bruce's query, I will immodestly suggest chapters 2 & 3 of
Rise and Demise propose one possible answer to the question.
tom
Thomas D. [tom] Hall
thall@depauw.edu
Department of Sociology
DePauw University
Greencastle, IN 46135
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765-658-4519
http://www.depauw.edu/~thall/hp1.htm