The processes determining regulatory impacts are increasingly centered
within firms and industries themselves, and in the working relationsh
ips among private and public actors. This article examines two aspects
of this issue: (a) the effects of interdependence on the social contr
ol of industry and (b) the emergence and behavior of regulatory profes
sions within the private sector and their collaboration with public re
gulatory counterparts. We consider how these forces have influenced pr
ivate regulation in the United States securities industry.