The weak-form efficiency of Chinese Stock Markets : thin trading, nonlinearity and episodic serial dependencies.

Lim, Kian-Ping and Habibullah, Muzafar Shah and Hinich, Melvin J. (2009) The weak-form efficiency of Chinese Stock Markets : thin trading, nonlinearity and episodic serial dependencies. Journal of Emerging Market Finance, 8 (2). pp. 133-163. ISSN 0972-6527

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Abstract

Motivated by the shortcomings of earlier Chinese efficiency studies, the present paper re-examines the weak-form effi ciency of Shanghai and Shenzhen Stock Exchanges. Specifically, our adopted methodologies mitigate the confounding effect of thin trading on return autocorrelation, detect both linear and nonlinear serial dependencies in the adjusted returns series, and capture the persistence of dependency structures over time. The result shows that the adjusted returns series from both markets follow a random walk for long periods of time, only to be interspersed with brief periods of strong linear and/or nonlinear dependency structures. This suggests that there are certain time periods when new information is not fully refl ected into stock prices. Another interesting finding is that the existence of serial dependencies in both the Shanghai and Shenzhen Stock Exchanges follows one another closely after October 1997. It indicates that both markets respond in a similar way to infl uences from political, economic, social and institutional changes.

Item Type:Article
Keyword:Nonlinearity; Thin trading; Market efficiency; China; Stock market.
Subject:Stock exchanges.
Subject:Stock exchanges - China.
Subject:Stocks - China.
Faculty or Institute:Faculty of Economics and Management
Publisher:SAGE Publications
DOI Number:10.1177/097265270900800203
ID Code:17368
Deposited By: Emelda Mohd Hamid
Deposited On:14 Nov 2012 06:32
Last Modified:14 Nov 2012 06:32

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