Market Return Model的意思|示意

The single-factor model thinks, the rate of return of the stock can be explained with system risk and none system risk together, but it limits the system risk in a factor (such as market index).

单因素模型认为，股票的收益率可以由系统风险和非系统风险联合解释，但它把系统风险限制在一个因素（如市场指数）当中。

Then the movement feature of the market is analyzed with the GARCH model, and whether the market return follows non-linear and leptokurtic heavy tail feature is validated.

文章还采用GARCH模型对市场的运行特征做了分析，对市场收益率是否服从非线性和尖峰胖尾的特征进行验证。

A nonlinear statistical model which describes a relationship between the return and the relative rate of trading volume in stock market is presented in this paper.

本文提出了一个描述股市收益率与成交量变化率的关系的非线性统计模型。

Applying the Voter model and the theory of stopping time, we construct the return process of a stock in a stock market. From this return process, we can derive the corresponding stock price process.

本文就是应用随机过程理论来建立选举模型，再应用选举模型和停时理论建立了股票收益过程，进而得到了股票价格过程。

Today, that model has warped into self-parody: many of the Banks' assets are unsellable even as they have to return to the market each day to ask for lenders to vote on their survival.

如今这种模式已经扭曲成了滑稽的自我模仿：很多银行资产都没有销路，正如他们每天都必须回到市场上央求贷款者帮助他们存活下去。

When we study stock market, we usually think that the model of stock price obeys Brownian movement, which log-return characterize normal distribution.

我们研究股票市场价格时，通常认为股票价格模型服从布朗运动，即对数收益率是正态分布的。