股指期货与股票市场波动性关系的实证研究

以日本的N225指数期货、韩国KOSPI200指数期货和我国台湾地区证交所加权指数(TWSE)期货作为样本,通过GARCH模型的序列建模,从样本总体和分阶段子样本分别对其股指期货推出与股票市场波动性的关系进行实证检验。结果表明,台湾地区的股票市场引入股指期货后现货市场的波动性并未受到影响,而日本和韩国股票市场在引入股指期货之后其波动性加剧,但这种波动性的加剧仅仅是短期性的,长期内并无影响。

The Relationship Between Stock Index Futures and the Volatility of Stock Market

Based on the sample of the N225 from Japan, KOSPI200 from Korea and TWSE from Taiwan, and the modeling of GARCH, this paper carries on the empirical research on the relationship of stock index futures and volatility of stock market through the sample and subsample respectively. The results indicate that introduction of the stock index futures has no impacts on the volatility of Taiwan stock market, whereas it magnifies the volatility of Japan stock market and Korea stock market in short run only, it also has no impacts in long run.