Flexible Utility Function Approximation via Cubic Bezier Splines.
Flexible Utility Function Approximation via Cubic Bezier Splines.
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DOI:
10.1007/s11336-020-09723-4
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发表时间:
2020-09
期刊:
影响因子:
3
通讯作者:
Kable JW
中科院分区:
文献类型:
--
作者:
Lee S;Glaze CM;Bradlow ET;Kable JW
In intertemporal and risky choice decisions, parametric utility models are widely used for predicting choice and measuring individuals’ impulsivity and risk aversion. However, parametric utility models cannot describe data deviating from their assumed functional form. We propose a novel method using cubic Bezier splines (CBS) to flexibly model smooth and monotonic utility functions that can be fit to any dataset. CBS shows higher descriptive and predictive accuracy over extant parametric models and can identify common yet novel patterns of behavior that are inconsistent with extant parametric models. Furthermore, CBS provides measures of impulsivity and risk aversion that do not depend on parametric model assumptions. The online version of this article (10.1007/s11336-020-09723-4) contains supplementary material, which is available to authorized users.
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