在简单阐述了期货市场套期保值的功能的基础上，利用效用指数法，得到套期保值的价格临界点，进行套期保值决策。
Based on the analysis of functions of futures market hedging, the critical point of hedging is obtained using the utility index method to make hedging decisions.
他们还驳斥了“幸福指数”的概念，这一概念指的是在经济增长达到了一个临界点之后，国家经济的进一步增长不会带来国民幸福程度的增长。
They also refute the concept of a " satiation point" or the belief that, beyond a certain income threshold, further increases in national wealth cease to increase national happiness.
数值计算了该模型系统渗透率在临界点处的标度指数。
The scaling exponents of the permeability are calculated at the percolation critical point.
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