华东经济管理
華東經濟管理
화동경제관리
East China Economic Management
2009年
1期
73~77
,共null页
鞅 随机游走 效率 棉花期货
鞅 隨機遊走 效率 棉花期貨
앙 수궤유주 효솔 면화기화
martingale; random walk; efficiency; cotton futures
文章首先对随机游走过程与市场弱式有效的关系进行系统分析,明确了利用随机游走检验市场有效性应遵循的步骤和程序,并澄清了已有研究中存在的错误和偏差。在此基础上,以郑州棉花期货为例进行了实证分析,得出了不同于已有研究的无效率结论,并进一步分析了棉花期货市场效率低下的原因,以及为提高效率应该采取的措施。
文章首先對隨機遊走過程與市場弱式有效的關繫進行繫統分析,明確瞭利用隨機遊走檢驗市場有效性應遵循的步驟和程序,併澄清瞭已有研究中存在的錯誤和偏差。在此基礎上,以鄭州棉花期貨為例進行瞭實證分析,得齣瞭不同于已有研究的無效率結論,併進一步分析瞭棉花期貨市場效率低下的原因,以及為提高效率應該採取的措施。
문장수선대수궤유주과정여시장약식유효적관계진행계통분석,명학료이용수궤유주검험시장유효성응준순적보취화정서,병징청료이유연구중존재적착오화편차。재차기출상,이정주면화기화위례진행료실증분석,득출료불동우이유연구적무효솔결론,병진일보분석료면화기화시장효솔저하적원인,이급위제고효솔응해채취적조시。
In this paper, we analyzed the relationship between random walk and Weak- form Efficiency market, supplied the steps that tests on efficiency of futures markets in use of random walk should keep to, corrected mistake in existing research, then tested the efficiency of Zhengzhou cotton futures market, concluded a inefficient result different from existing research at last. Afterward reasons resulting in low efficiency were indicated and measures to improve were brought forward.