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- In economics, King–Plosser–Rebelo preferences are a particular functional form of utility that is used in many macroeconomic models and dynamic stochastic general equilibrium models. Having originally been proposed in an article that appeared in the Journal of Monetary Economics in 1988, the corresponding technical appendix detailing their derivation has only been published in 2002. Denote consumption with C, leisure with L and the absolute value of the inverse of the intertemporal elasticity of substitution in consumption with . Strict concavity of the utility function implies .For or the utility function has the multiplicatively separable form where is increasing and concave if or decreasing and convex if . Further restrictions are required to assure overall concavity of the momentarily utility function.In the limit case of the resulting preferences specification is additively separable and given by where is increasing and concave. The reason for the prevalence of this preference specification in macroeconomics is that they are compatible with balanced growth along the optimal steady state. Hence, they are used in many dynamic stochastic general equilibrium models, which are typically derived from the neoclassical growth model. The reason for their compatibility with balanced growth is twofold. First, having a constant interest rate in steady state, the growth rate of marginal utility must be constant, which is the case here. Second, having a finite time endowment, balanced growth together with an optimal choice of labor by the agents implies that income and substitution effect of the increase in real wages due to productivity increases must cancel each other. (en)
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- 5187 (xsd:nonNegativeInteger)
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- In economics, King–Plosser–Rebelo preferences are a particular functional form of utility that is used in many macroeconomic models and dynamic stochastic general equilibrium models. Having originally been proposed in an article that appeared in the Journal of Monetary Economics in 1988, the corresponding technical appendix detailing their derivation has only been published in 2002. where is increasing and concave. (en)
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- King–Plosser–Rebelo preferences (en)
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