风险规避者是指当一个人为损失一定量的收入而产生的痛苦感大于他为得到同等数量的收入而产生的幸福感，则他就是一个风险规避者
在此基础上，根据递减绝对风险规避者的效用函数集合的特征，分析并证明其决策准则，给出定理4、定理5。
According to characteristics of the decreasing absolute risk averter's utility functions, the paper analyzes and proves its decision rules, gives the theorem 4 and theorem 5.
第一，把国债划分成几部分，蓝色债券被提高的安全保障，最终会以红色债券为代价- - -这对风险规避者成了烫手山芋。
First, by dividing sovereign debt into tranches, the enhanced safety of the blue bonds would come at the expense of the red ones-which could become red-hot for risk-averse investors.
现实生活中，投资者大多是风险规避者，只是风险规避程度不同而已，因此，风险规避投资者的行为对问题的研究具有重要的意义。
In real life, investors are mostly partial to risk aversion just to have different degree. Therefore, studying behaviour of investors partial to risk aversion has important significance.
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