Crossley, TF and Low, HW (2011) 'Is the elasticity of intertemporal substitution constant?' Journal of the European Economic Association, 9 (1). 87 - 105. ISSN 1542-4766

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Abstract

In all common models of inter-temporal allocation, the assumption of a constant elasticity of intertemporal substitution (EIS) imposes surprising limitations on within-period budget allocations. Consequently, the constant EIS assumption can be tested with demand data. In fact, the EIS is pinned down completely by the shape of Engel curves: if the EIS is constant then the EIS can be estimated without variation in the interest rate. That a price elasticity can be estimated without variation in the relevant price illustrates just how strong the constant EIS assumption is. The constant EIS assumption is rejected by demand data. © 2010 by the European Economic Association.

Item Type:	Article
Subjects:	H Social Sciences > HB Economic Theory
Divisions:	Faculty of Social Sciences > Economics, Department of
Depositing User:	Jim Jamieson
Date Deposited:	04 Sep 2013 09:30
Last Modified:	04 Feb 2019 11:16
URI:	http://repository.essex.ac.uk/id/eprint/7512

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