收益性

Since Leptokurtosis, skewness and fat-tail are always used to depict market risk, this paper introduces the improved Laplace distribution to risk management of stock portfolio. Empirical results show, improved Laplace distribution and asymmetric Laplace distribution are similar for estimating Leptokurtosis, while improved Laplace distribution is better for estimating skewness.In order to analyze the correlation between return distribution and volatility, the thesis uses ARCH-M Models to simulate the return series of China's Stock Market and developed markets ao as to discover the relation between investment return and time-varying risk.

对尖峰、厚尾、偏态的刻画有助于正确估计市场风险，本文将改进型Laplace分布引入到股票组合的风险管理中，实证结果发现，改进型Laplace分布和非对称Laplace分布对尖峰、厚尾的刻画效果接近；而非对称Laplace分布对负偏性考察不足，改进型Laplace分布的拟合结果能够准确地反映股指收益的负偏态，这也正是改进型Laplace分布相对于传统的非对称Laplace分布的优势所在。

Better constructability brings lower investment,shorter time limit and longer life cycle.

较好的可维护性带来的收益包括降低运营成本和生命周期费用、减少发生故障后的维修时间、延长产品使用寿命、降低故障率、减少计划外的运行暂停时间。

Many financial time series have a number of characteristics in common. Firstly, the logarithmic return series usually show no or little autocorrelation, whereas the squared values or absolute values of the series have high autocorrelation.

首先，收益序列没有明显的自相关性，但其平方或绝对值却高度自相关，序列的波动呈聚集性。

According to the presumption of rational economic person, policy lagging reasons include: the self-interested body of policy as well as its cost-income calculation; being unequal and nonidentical in need of policy; resort to certain channels that providing policy; decision-makers' finitary rationality.

从理性经济人假定出发，政策滞后的原因包括政策主体的自利性及其成本—收益计算；政策需求的非均质、非同一性；政策供给的路径依赖与决策者的有限理性。

Unless receivables earn interest, they are nonproductive assets which produce no revenue as they await collection.

除非应收款附加利息，它们是非增值性的资产，等待收回的这段时间内不产牛任何收益。

Inefficient supervision on the marketing products causes the problem that low quality products elbow with high quality Ones, reducing the producer's benefit expectation. The official-run certification agencies make the monopolistic interest privatized or the producer's interest transfered to their own, which disagree with the principle of Pareto optimality.

认证取费过高，增加了生产者的固定成本；认证后对产品市场监督不力，又使市场上劣品排斥正品，降低了生产者收益预期；认证机构的官商性使国家垄断利益私有化，或生产者利益向认证机构转移，不符合帕累托最优原则。

By taking coordinated policies on some issues, such as supplement of inventory, treatment of out-of-stock and relationship among members of distribution system, a mathematical model to maximize total expected system profit is developed.

对分销中心库存的补充订货、缺货处理以及分销系统各成员之间的关系等问题采取协同策略，建立了使分销系统期望总收益最大化的数学模型，在分析模型解的存在性的基础上，探索了相应的求解方法。

Careful sex principle is the circumstance dirty that shows in existence inaccuracy decides an element when giving judgement, retain necessary discretion, asset of both neither overmeasure or accrual, also do not underestimate indebted or charge.

梗概： 谨慎性原则是指在存在不确定因素的情况下作出判定时，保持必要的谨慎，既不高估资产或收益，也不低估负债或费用。

This paper introduces the game theory and sets up, based on it, the choice model for the public transportation priority by identifying the function of the payoff and the muster of attendee and stratagem. In addition, it analyses the existence of NASH equilibrium, and puts forward the arithmetic of Iterated Elimination of Strictly Dominated Strategies in the general condition, the Integrated Strategies in the special condition and the flow chart of the model. At last, it verifies the feasibility of the model with the given example.

本文采用了博弈论的理论，通过对公交优先系统中参与者集合N、战略集合S和收益函数u的确定，建立了一种基于博弈论的公交优先技术方案选择博弈模型来量化方案选择问题；在此基础上分析了NASH均衡的存在性，并且给出了一般情况下的重复剔除劣战略和特殊情况下的混合策略两种模型求解方法以及公交优先技术方案选择博弈模型的流程图；最后通过算例分析，验证了博弈模型应用于公交优先技术方案选择的可行性。

Revenue management is a kind of new theory and method to manage perishable product s.

收益管理是针对易逝性产品提出的一种新的管理理论和方法。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失