Given all the intellectual excitement surrounding the new ideas on com
plexity, it is easy to overlook the fact that the apparent simplicity
of the past was often more a function of the constraints put on the fr
aming of the issue or problem at hand, both conceptually and in policy
making, than it was a reflection of any inherent properties. Revisiti
ng several case studies helps to illustrate the point that complexity,
now or in the past, resides especially in the social relationships wi
thin and between institutions and agents. Much current thinking about
complexity is moving towards development of ever more sophisticated me
thodologies with which to probe complex systems, hence to facilitate t
heir management and control. We argue that such methodological elabora
tion frequently acts as a direct substitute for institutional developm
ent and reflexivity, and we urge instead for exploration of new forms
of institutional mediation. Copyright (C) 1996 Elsevier Science Ltd