沪深股市相似的结构和监管环境使得两市的收益率和波动性之间具有相互作用和影响。
The Shanghai and Shenzhen Stock markets share similar structures and regulatory environments, so there are interaction and influences of returns and volatility between the two market.
结果表明，深证成指周收益率序列的波动性可以用GARCH模型进行很好的拟合。
The results show that the GARCH model can be a good fit to the weekly return series of Shenzhen Stock Index.
同时，对沪铜收益率的波动性特征，两类模型得出了相同的实证结果。
At the same time, to the volatility of copper yield rates characteristics, two types of models came to the same empirical results.
在此基础上利用随机波动类模型对两种收益率的波动性特征进行拟合，并对拟合优度进行分析。
Based on this we simulate the volatility features of the two kinds of yield rate time series and analyze their fitting results using the stochastic volatility models.
通过研究股票实际收益率与通货膨胀波动性之间的关系，可以判断股票市场波动和宏观经济运行之间的联系。
By studying the relationship between stock real returns and inflation, we could find the correlation between stock market volatility and macroeconomic conditions.
分析结果显示：我国股市日收益率具有明显的异方差性、波动性、聚集性、持续性和杠杆效应。
The results showed that the daily yield of China' s stock market had obvious heteroscedasticity, volatility, aggregation, sustainability and leverage effect.
我国期货市场的波动性与收益率显著正相关(即风险价值大于零)，风险越大，投资者所要求的收益率就越高。
Sixthly, volatility and return rate is positive correlation in our country's futures market, the greater risk, the higher return that investors demand.
对上海和深圳市场股价指数及其月度超额收益率的分析表明，我国股票市场的波动性较大；
The author analyzes the indexes of stock price and their monthly excessive return rate in Shanghai and Shenzhen Market. Relative high volatility exists in China's security market.
近期有学者开始关注个股间相关性和个股的特质波动性是否对股票截面收益率有影响。
Recently, some scholars began to pay attention to the correlation risk between individual stocks and the idiosyncratic volatilities of individual stocks.
结果表明：中国股市收益率与波动性具有长记忆性，尽管收益率的长记忆性不如美国股市强；
The results show that the stock market returns and volatilities in China have long memory and persistence although they are not as strong as that of American stock market;
结果表明：中国股市收益率与波动性具有长记忆性，尽管收益率的长记忆性不如美国股市强；
The results show that the stock market returns and volatilities in China have long memory and persistence although they are not as strong as that of American stock market;
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