使用收益的期望值—标准差无差异曲线与相应的效益函数来描述决策者不同的风险态度；
The indifference curves of expected values and standard deviations of net income are adopted to simulate the different risk attitudes of different decision-makers.
如果以下一节的术语来表述，则是三个效用函数具有同样的无差异曲线，尽管它们为各曲线标上了不同的效用值。
In the terminology of the next section, these three utility functions would have identical indifference curves even though they attach different Numbers to the curves.
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