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Weak Concavity Properties of Indirect Utility Functions in Multisector Optimal Growth Models

Abstract : Studies of optimal growth in a multisector framework are generally addressed in reduced form models. These are defined by an indirect utility function which summarizes the consumers' preferences and the technologies. Weak concavity assumptions of the indirect utility function allow one to prove differentiability of optimal solutions and stability of steady state. This paper shows that if the consumption good production function is concave-gamma, and the instantaneous utility function is concave-rho, then the indirect utility function is weakly concave, and its curvature coefficients are bounded from above by a function of gamma and rho.
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Submitted on : Monday, September 1, 2014 - 12:54:15 PM
Last modification on : Saturday, June 25, 2022 - 11:14:38 PM
Long-term archiving on: : Tuesday, April 11, 2017 - 9:18:09 PM

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Alain Venditti. Weak Concavity Properties of Indirect Utility Functions in Multisector Optimal Growth Models. 2011. ⟨halshs-01059589⟩

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