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Some $\lambda$-separable Frisch demands with  utility functions

Abstract

We complete the characterization of two Frisch demand systems first developed by \cite{Browning-etal85}, and show that that these systems (i) do not restrict intertemporal substitution; but (ii) imply momentary utility functions which are additively separable in consumption. These utility functions turn out to take the well-known exponential and Stone-Geary forms.

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