A simple derivation of Prelec's probability weighting function
A simple derivation of Prelec's probability weighting function
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DOI:
10.1016/j.jmp.2006.07.006
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发表时间:
2006-12-01
影响因子:
1.8
通讯作者:
Dhami, Sanjit
中科院分区:
文献类型:
--
作者:
al-Nowaihi, Ali;Dhami, Sanjit
Since Kahneman and Tversky [(1979). Prospect theory: An analysis of decision under risk. Econometrica, 47, 263-291], it has been generally recognized that decision makers overweight low probabilities. Of the several weighting functions that have been proposed, that of Prelec [(1998). The probability weighting function. Econometrica, 60, 497-528] has the attractions that it is parsimonious, consistent with much of the available empirical evidence and has an axiomatic foundation. Luce [(2001). Reduction invariance and Prelec's weighting functions. Journal of Mathematical Psychology, 45, 167-179] provided a simpler derivation based on reduction invariance, rather than compound invariance of Prelec [(1998). The probability weighting function. Econometrica, 60, 497-528]. This note introduces a behavioral assumption that we call power invariance and provides a simple derivation of Prelec's function. Thus, we have three a priori different behavioral assumptions all leading to Prelec's function. (c) 2006 Elsevier Inc. All rights reserved.