Information Impact Effect of Shanghai Composite Stock Index Base On EGARCH Model
In this paper, we used Shanghai Composite Index closing price data from January 2001 to April 2009, constituted the EGARCH model base on GED distribution to measure the markets Information Impact Effect.Empirical results show that: the Shanghai Composite Index closing price fluctuations have a leverage effect, bad news have greater volatility than the same amount of good news.When the good news can give the logarithm of conditional variance the impact of 0.230 while the bad news with the impact of 0.592.
leverage effection information impact EGARCH model
Qunfeng Li
Henan Normal University
国际会议
武汉
英文
72-74
2010-06-06(万方平台首次上网日期,不代表论文的发表时间)