A Periodic Review Inventory System with S-Shaped Utility Function

Zhao, Xuebing; Geng, Wei; Chao, Xiuli; Gao, Deng

doi:10.2139/ssrn.2816197

Cited by 2 publications

(1 citation statement)

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“…Kahneman and Tversky prospect theory demonstrates that most human utility is defined on deviations from the reference point; the utility function is normally concave for gains and commonly convex for losses, and is generally steeper for losses than for gains. These features of human behavior in decision-making can often be characterized by the following S-shaped utility function [26] in Equation (4):…”

Section: Stock Selection By the Eu-e Investment Decision Modelmentioning

confidence: 99%

Stock Selection for Portfolios Using Expected Utility-Entropy Decision Model

Yang

Feng

Wan-hua

2017

Entropy

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Yang and Qiu proposed and then recently improved an expected utility-entropy (EU-E) measure of risk and decision model. When segregation holds, Luce et al. derived an expected utility term, plus a constant multiplies the Shannon entropy as the representation of risky choices, further demonstrating the reasonability of the EU-E decision model. In this paper, we apply the EU-E decision model to selecting the set of stocks to be included in the portfolios. We first select 7 and 10 stocks from the 30 component stocks of Dow Jones Industrial Average index, and then derive and compare the efficient portfolios in the mean-variance framework. The conclusions imply that efficient portfolios composed of 7(10) stocks selected using the EU-E model with intermediate intervals of the tradeoff coefficients are more efficient than that composed of the sets of stocks selected using the expected utility model. Furthermore, the efficient portfolio of 7(10) stocks selected by the EU-E decision model have almost the same efficient frontier as that of the sample of all stocks. This suggests the necessity of incorporating both the expected utility and Shannon entropy together when taking risky decisions, further demonstrating the importance of Shannon entropy as the measure of uncertainty, as well as the applicability of the EU-E model as a decision-making model.

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Section: Stock Selection By the Eu-e Investment Decision Modelmentioning

confidence: 99%