In dictionaries:
intertemporal choice
(economy) A choice made between current benefits and future benefits. For example, by consuming less today and saving more, consumption could be increased in the future.
Elasticity of intertemporal substitution
In economics, elasticity of intertemporal substitution (or intertemporal elasticity of substitution, EIS, IES) is a measure of responsiveness of the growth rate of consumption to the real interest rate.
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