Each agent j epsilon{1,..., N} receives an independent shock influencing he
r degree of risk aversion, then undertakes a risky or safe investment. Prio
r investment in 'related' industries reduces the uncertainty. The shock his
tory and this intertemporal interaction determine the long-run growth rate.
(C) 2000 Elsevier Science S.A. All rights reserved. JEL classification: O4
.