Econometrica

Journal Of The Econometric Society

An International Society for the Advancement of Economic
Theory in its Relation to Statistics and Mathematics

Edited by: Guido W. Imbens • Print ISSN: 0012-9682 • Online ISSN: 1468-0262

Econometrica: Mar, 2022, Volume 90, Issue 2

Optimal Discounting

https://doi.org/10.3982/ECTA16050
p. 585-623

Jawwad Noor, Norio Takeoka

The agent is modeled as a current self that optimally incurs a cognitive cost of empathizing with future selves. The model unifies well‐known experimental and empirical findings in intertemporal choice and enriches the multiple selves model with a notion of self‐control. The defining feature of the model is magnitude‐decreasing impatience: greater patience toward larger rewards. Two behavioral definitions of magnitude‐decreasing impatience are provided and the model is characterized under each of them.


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Supplemental Material

Supplement to "Optimal Discounting"

Noor, Jawwad, and Norio Takeoka

This supplementary appendix for Noor and Takeoka [3] provides (i) a characterization for the General Discounted Utility (GDU) model both on the deterministic streams and on the streams of lotteries, (ii) a weaker definition of present equivalents in the off-diagonal approach, (iii) omitted proofs for results in Noor and Takeoka [3], and (iv) a new axiomatization result about a variant of homogeneous CE representation, called the smooth homogeneous CE model.

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