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Title: Pay One or Pay All? The Role of Incentive Schemes in Decision Making Across Adulthood
Abstract Objectives

This research addresses how younger and older adults’ decisions and evaluations of gains and losses are affected by the way in which monetary incentives are provided. We compared 2 common incentive schemes in decision making: pay one (only a single decision is incentivized) and pay all (incentives across all decisions are accumulated).

Method

Younger adults (18–36 years; n = 147) and older adults (60–89 years; n = 139) participated in either a pay-one or pay-all condition and made binary choices between two-outcome monetary lotteries in gain, loss, and mixed domains. We analyzed participants’ decision quality, risk taking, and psychometric test scores. Computational modeling of cumulative prospect theory served to measure sensitivity to outcomes and probabilities, loss aversion, and choice sensitivity.

Results

Decision quality and risk aversion were higher in the gain than mixed or loss domain, but unaffected by age. Loss aversion was higher, and choice sensitivity was lower in older than younger adults. In the pay-one condition, the value functions were more strongly curved, and choice sensitivity was higher than in the pay-all condition.

Discussion

An opportunity of accumulating incentives has similar portfolio effects on younger and older adults’ decisions. In general, people appear to decide less cautiously in pay-all than pay-one scenarios. The impact of different incentive schemes should be carefully considered in aging and decision research.

 
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NSF-PAR ID:
10375909
Author(s) / Creator(s):
; ; ; ;
Publisher / Repository:
Oxford University Press
Date Published:
Journal Name:
The Journals of Gerontology: Series B
ISSN:
1079-5014
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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