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Regulation Change and Volatility Spillovers: Evidence from China's Stock Markets

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  • Zhian Chen
  • Hai Jiang
  • Donghui Li
  • Ah Boon Sim

Abstract

This paper investigates the structural changes of volatility spillovers between Chinese A-share and B-share markets induced by a regulation change on February 19, 2001, that allowed Chinese domestic investors to trade in the B-share market. The empirical results of the study, using high-frequency intraday data collected from a sample of seventy-eight firms issuing both A-shares and B-shares and employing a bivariate generalized autoregressive conditional heteroskedasticity (GARCH) model, show that after the regulation change, the volatility in A-shares increases the volatility in B-shares, thus increasing the risk of the whole market, whereas the latter reduces the former, thus reducing the risk of the whole market. A further investigation of the determinants influencing these structural changes shows that the following factors can encourage structural changes that reduce overall market risk: government ownership, institutional ownership, firm size, B-share proportion, and market-to-book ratio. Conversely, the following factors can encourage structural changes that increase overall market risk: dual roles of chief executive officer and chairman and the joint effect of firm size and B-share proportion.

Suggested Citation

  • Zhian Chen & Hai Jiang & Donghui Li & Ah Boon Sim, 2010. "Regulation Change and Volatility Spillovers: Evidence from China's Stock Markets," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 46(6), pages 140-157, November.
  • Handle: RePEc:mes:emfitr:v:46:y:2010:i:6:p:140-157
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    Cited by:

    1. Zhian Chen & Xin Cui, 2012. "Decomposing the Bid-Ask Spread in a Segmented Equity Market: Analyzing Chinese A Shares Versus B Shares," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 48(4), pages 30-49, July.
    2. Bley, Jorg & Saad, Mohsen, 2011. "The effect of financial liberalization on stock-return volatility in GCC markets," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 21(5), pages 662-685.
    3. Zhian Chen & Xin Cui, 2012. "Decomposing the Bid-Ask Spread in a Segmented Equity Market: Analyzing Chinese A Shares Versus B Shares," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 48(4), pages 30-49, July.
    4. Yum K. Kwan & Jinyue Dong, 2014. "Stock Price Dynamics of China: What Do the Asset Markets Tell Us About the Chinese Utility Function?," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 50(03), pages 77-108, May.

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