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Pareto utility

机译:帕累托工具

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摘要

In searching for an appropriate utility function in the expected utility framework, we formulate four properties that we want the utility function to satisfy. We conduct a search for such a function, and we identify Pareto utility as a function satisfying all four desired properties. Pareto utility is a flexible yet simple and parsimonious two-parameter family. It exhibits decreasing absolute risk aversion and increasing but bounded relative risk aversion. It is applicable irrespective of the probability distribution relevant to the prospect to be evaluated. Pareto utility is therefore particularly suited for catastrophic risk analysis. A new and related class of generalized exponential (gexpo) utility functions is also studied. This class is particularly relevant in situations where absolute risk tolerance is thought to be concave rather than linear.
机译:在期望的实用程序框架中搜索合适的实用程序功能时,我们制定了四个我们希望该实用程序功能满足的属性。我们对这种功能进行了搜索,并将Pareto效用确定为满足所有四个所需属性的功能。 Pareto实用程序是一个灵活而简单的简约两参数家族。它表现出的绝对风险规避减少,而相对风险规避则增加,但有一定限度。无论与要评估的潜在客户相关的概率分布如何,都适用。因此,帕累托工具特别适合于灾难性风险分析。还研究了一类新的相关的广义指数(gexpo)效用函数。在绝对风险承受能力被认为是凹而不是线性的情况下,此类尤其重要。

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