河南科学
河南科學
하남과학
HENAN SCIENCE
2015年
5期
849-853
,共5页
量价关系%EGARCH-M模型%预期交易量%非预期交易量
量價關繫%EGARCH-M模型%預期交易量%非預期交易量
량개관계%EGARCH-M모형%예기교역량%비예기교역량
volatility-volume relationship%EGARCH-M model%expected volume%unexpected volume
以混合分布假说(MDH)为理论基础,把实际交易量划分为预期和非预期交易量,引入EGARCH-M模型中,提出基于预期交易和非预期交易的量价关系模型,并用该模型刻画上证基金指数的量价关系。实证研究表明:上证基金指数的日交易量可以作为当期信息到达市场的解释变量;基于预期和非预期交易的EGARCH-M扩展模型拟合精度显著优于原模型和仅考虑对数交易量的模型;非预期交易量对指数价格的冲击显著大于预期交易量。
以混閤分佈假說(MDH)為理論基礎,把實際交易量劃分為預期和非預期交易量,引入EGARCH-M模型中,提齣基于預期交易和非預期交易的量價關繫模型,併用該模型刻畫上證基金指數的量價關繫。實證研究錶明:上證基金指數的日交易量可以作為噹期信息到達市場的解釋變量;基于預期和非預期交易的EGARCH-M擴展模型擬閤精度顯著優于原模型和僅攷慮對數交易量的模型;非預期交易量對指數價格的遲擊顯著大于預期交易量。
이혼합분포가설(MDH)위이론기출,파실제교역량화분위예기화비예기교역량,인입EGARCH-M모형중,제출기우예기교역화비예기교역적량개관계모형,병용해모형각화상증기금지수적량개관계。실증연구표명:상증기금지수적일교역량가이작위당기신식도체시장적해석변량;기우예기화비예기교역적EGARCH-M확전모형의합정도현저우우원모형화부고필대수교역량적모형;비예기교역량대지수개격적충격현저대우예기교역량。
Trading volume is regarded as a significant signal of current information based on MDH theory. We divide real volume into expected volume and unexpected volume,employ an EGARCH-M model to research the relationship between price volatility and trading volume on the risk premium. Then we analyse the volatility?volume of SH fund index. The results show that the expansion EGARCH-M model is better than the original model. Trading volume of the SH fund index can be used as explaining variable of the current information that arrives market and the unexpected volume has a larger influence than the expected volume.