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Policy impacts on Vietnam stock markets: a case of anomalies and disequilibria 2000-2006

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Author Info

  • André Farber
  • Van Nam Nguyen
  • Quan Hoang Vuong

Abstract

Vietnam launched its first-ever stock market, named as Ho Chi Minh City Securities Trading Center (HSTC) on July 20, 2000. This is one of pioneering works on HSTC, which finds empirical evidences for the following: Anomalies of the HSTC stock returns through clusters of limit-hits, limit-hit sequences; Strong herd effect toward extreme positive returns of the market portfolio;The specification of ARMA-GARCH helps capture fairly well issues such as serial correlations and fat-tailed for the stabilized period. By using further information and policy dummy variables, it is justifiable that policy decisions on technicalities of trading can have influential impacts on the move of risk level, through conditional variance behaviors of HSTC stock returns. Policies on trading and disclosure practices have had profound impacts on Vietnam Stock Market (VSM). The over-using of policy tools can harm the market and investing mentality. Price limits become increasingly irrelevant and prevent the market from self-adjusting to equilibrium. These results on VSM have not been reported before in the literature on Vietnam’s financial markets. Given the policy implications, we suggest that the Vietnamese authorities re-think the use of price limit and give more freedom to market participants.

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Bibliographic Info

Paper provided by ULB -- Universite Libre de Bruxelles in its series Working Papers CEB with number 06-005.RS.

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Length: 28 p.
Date of creation: Apr 2006
Date of revision:
Publication status: Published by: Université Libre de Bruxelles, Solvay Business School, Centre Emile Bernheim (CEB)
Handle: RePEc:sol:wpaper:06-005

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Keywords: GARCH; Vietnam; Emerging stock market; Policy Impacts.;

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References

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  1. Huang, Yen-Sheng & Fu, Tze-Wei & Ke, Mei-Chu, 2001. "Daily price limits and stock price behavior: evidence from the Taiwan stock exchange," International Review of Economics & Finance, Elsevier, vol. 10(3), pages 263-288, July.
  2. Chang, Eric C. & Cheng, Joseph W. & Khorana, Ajay, 2000. "An examination of herd behavior in equity markets: An international perspective," Journal of Banking & Finance, Elsevier, vol. 24(10), pages 1651-1679, October.
  3. Pyun, Chong Soo & Lee, Sa Young & Nam, Kiseok, 2000. "Volatility and information flows in emerging equity market: A case of the Korean Stock Exchange," International Review of Financial Analysis, Elsevier, vol. 9(4), pages 405-420.
  4. Berkman, Henk & Lee, John Byong Tek, 2002. "The effectiveness of price limits in an emerging market: Evidence from the Korean Stock Exchange," Pacific-Basin Finance Journal, Elsevier, vol. 10(5), pages 517-530, November.
  5. Malliaropulos, Dimitrios & Priestley, Richard, 1999. "Mean reversion in Southeast Asian stock markets," Journal of Empirical Finance, Elsevier, vol. 6(4), pages 355-384, October.
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Cited by:
  1. Kuan-Min Wang & Hung-Cheng Lai, 2013. "Which Global Stock Indices Trigger Stronger Contagion Risk in the Vietnamese Stock Market? Evidence Using a Bivariate Analysis," Panoeconomicus, Savez ekonomista Vojvodine, Novi Sad, Serbia, vol. 60(4), pages 473-497, June.
  2. Quan Hoang Vuong & Tran Tri Dung & Thi Chau Ha NguyenN, 2009. "Mergers and Acquisitions in Vietnam’s Emerging Market Economy, 1990-2009," Working Papers CEB 09-045.RS, ULB -- Universite Libre de Bruxelles.

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