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Checking the Evidence for Declining Discount Rates

Version
V0
Resource Type
Dataset : experimental data
Creator
  • Szekeres, Szabolcs (IID Gazdasági Tanácsadó Kft)
Publication Date
2020-08-04
Free Keywords
Weitzman-Gollier puzzle; declining discount rates; Discounting
Description
  • Abstract

    A numerical model is used to experimentally compute certainty equivalent discount rates (CERs) of risk neutral and risk-averse decision makers. Investors are characterized by utility functions of the constant-intertemporal-elasticity-of-substitution (CIES) type. Stochastic interest rates are generated using a Cox, Ingersoll & Ross (CIR) type model, calibrated to 1992-2017 US three-month Treasury Bill rates. The paper replicates empirical studies providing evidence for declining discount rates (DDRs) and tests claims regarding risk averse CERs in a descriptive discounting context. It is shown that DDRs as proposed by Weitzman are based on a fallacy. The reviewed papers seeking empirical evidence of DDRs repeat the mistake. Risk averse CERs can be decline with time because of portfolio effects. If these are low, risk averse CERs are slightly lower than risk neutral ones but not secularly declining.




Availability
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Relations
  • Has version
    DOI: 10.3886/E120537V1

Update Metadata: 2020-08-04 | Issue Number: 1 | Registration Date: 2020-08-04

Szekeres, Szabolcs (2020): Checking the Evidence for Declining Discount Rates. Version: V0. ICPSR - Interuniversity Consortium for Political and Social Research. Dataset. https://doi.org/10.3886/E120537