机构地区: 对外经济贸易大学
出 处: 《预测》 2012年第6期40-43,60,共5页
摘 要: 本文通过使用Markov机制转换的状态空间模型,对比分析中美两国股票价格指数数据的时间序列,结果显示该模型识别出了两国股票价格指数波动的机制转换状态以及波动的拐点,分析得出三点结论:我国股市不仅下跌幅度大,下跌时间也往往更长;我国股市在波动幅度上显示出更大的波动性和易变性;同时,我国股票价格波动的周期明显比美国股票价格波动周期长,体现出了我国股票市场成熟度较低。 In this paper we analyze the time series data of stock price index both in China and U.S. using a state-space model with Markov-switching. We identify the regime switching characteristics and turning points for the stock markets in China and U.S. We find that the volatility of stock price in China is greater than that of U.S. and the cycle is longer, implying the maturity of China' s stock market is lower. We also find that the price of stock market in China falls deeper and longer
关 键 词: 股票波动 机制转换的状态空间模型 拐点识别
领 域: [经济管理]