Optimality in an OLG model with nonsmooth preferences

Eisei Ohtaki

International Journal of Economic Theory, 2023, vol. 19, issue 3, 611-659

Abstract: It is a well‐known observation that, in the overlapping generations (OLG) model with the complete market, we can judge optimality of an equilibrium allocation by examining the associated equilibrium price. Motivated by recent development in decision theory under ambiguity, this study reexamines the above observation in a stochastic OLG model with convex but not necessarily smooth preferences. It is shown that optimality of an equilibrium allocation depends on the set of possible supporting prices, not necessarily on the associated equilibrium price itself. Therefore, observations of an equilibrium price do not necessarily tell us precise information on optimality of the equilibrium allocation.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:bla:ijethy:v:19:y:2023:i:3:p:611-659

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