This paper presents a single factor heteroscedastic model, deduce a method of this heteroscedastic analysis, and presents the estimation of mean and variance in this model.
本文提出了一种单因子异方差模型，导出这种异方差分析方法，并给出了模型中均值与方差的估计。
Some of classical analytical methods about Security market, including stock market have Mean-Variance analytics, APT theory, CAPM model, B-S options pricing model, etc.
对证券市场包括股票市场中的一些经典方法有：均值-方差分析法、APT理论、CAPM模型、B-S期权定价模型等。
In the paper, the mathematical model for the proposed method is deduced, and the mean and variance of the acquired carrier difference phase of the proposed method are analyzed and simulated.
给出了该方法提取两导航台载波差分相位的数学模型，并分析了该方法提取的差分相位的均值及误差，进行了计算机仿真。
Markowitz's mean variance model describes the risk of asset by variance, but variance may not exist because of fat tailedness of asset returns.
马柯维兹均值—方差模型使用收益率的方差度量证券的风险，但是实际分布呈尖顶胖尾状，使得方差可能不存在。
The paper summarized domestic and international research results in the field of Markowitz s mean-variance model.
本文概述了国内外在马克·维茨均值-方差模型领域的研究成果。
Chapter 2 discusses reinsurance optimization model under mean-variance principle. Aiming at change stop loss reinsurance, it derives optimal conclusions of both individual model and collective model.
第二章讨论了均值方差原理下的再保险最优化模型及其适用条件，针对停止损失再保险，得出个体模型与集合模型下的最优结论。
Aiming at stop loss reinsurance, this paper derives optimal pricing model of reinsurance on the basis of total claim amount using mean-variance premium principle and utility theory.
停止损失再保险作为一种再保险方式，在具有相同保费的前提下，能使保险人的期望效用最大，并能使其自留风险方差最小。
On the basis of the classical mean-variance model, the article proposes the asset allocation model with value-at-risk constraint and transaction cost.
在经典均值-方差模型的基础上，提出了存在交易费用时基于风险价值约束的资产配置模型。
Particularly, parameters of model can be chosen to match empirically estimated mean, variance, skewness, and kurtosis of the stock return distribution. The model thus has the potential to produce…
特别地，模型的系数可选择得与股票收益分布的实际估计评均值、方差、挠度和峭度相匹配，因而就可能产生出与实际观测的股票收益分布较为一致的期权价格。
Particularly, parameters of model can be chosen to match empirically estimated mean, variance, skewness, and kurtosis of the stock return distribution. The model thus has the potential to produce…
特别地，模型的系数可选择得与股票收益分布的实际估计评均值、方差、挠度和峭度相匹配，因而就可能产生出与实际观测的股票收益分布较为一致的期权价格。
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