Intertemporal Substitution and Hyperbolic Discounting
AbstractEvidence from behavioural experiments suggests that intertemporal preferences reflect a hyperbolic discount function. This paper shows that in contrast to exponential discounting, the elasticity of intertemporal substitution for hyperbolic consumers depends on the persistence of the change in the intertemporal relative price. In particular, lasting changes in the real interest rate are likely to generate a smaller degree of intertemporal substitution in consumption than temporary changes. This result holds for both sophisticated and naive hyperbolic consumers. It provides a novel testable implication of hyperbolic discounting and a new perspective on intertemporal substitution.
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Bibliographic InfoPaper provided by Faculty of Economics, University of Cambridge in its series Cambridge Working Papers in Economics with number 0515.
Date of creation: Apr 2005
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Intertemporal substitution; consumption; quasi-hyberbolic discounting;
Find related papers by JEL classification:
- D91 - Microeconomics - - Intertemporal Choice - - - Intertemporal Household Choice; Life Cycle Models and Saving
- E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
This paper has been announced in the following NEP Reports:
- NEP-ALL-2005-04-24 (All new papers)
- NEP-EXP-2005-04-24 (Experimental Economics)
- NEP-LTV-2005-04-24 (Unemployment, Inequality & Poverty)
- NEP-MIC-2005-04-24 (Microeconomics)
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