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Anatomy of a Government Intervention in Index Stocks: Price Pressure or Information Effects?

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  • Karan Bhanot

    (University of Texas at San Antonio)

Abstract

In a massive intervention designed to deter speculators, the Hong Kong Monetary Authority (HKMA) bought Hang Seng index stocks in August 1998. These stocks experienced a 24% abnormal return during the intervention period. The abnormal returns are not reversed over the next eight weeks, refuting the hypothesis that returns are due to temporary liquidity effects. Cross-sectional analysis of daily abnormal returns during the intervention period reveals that these returns are related to overall intervention activity rather than stock-specific intervention. This evidence is consistent with information effects rather than price pressure effects.

Suggested Citation

  • Karan Bhanot, 2006. "Anatomy of a Government Intervention in Index Stocks: Price Pressure or Information Effects?," The Journal of Business, University of Chicago Press, vol. 79(2), pages 963-986, March.
    • Handle: RePEc:ucp:jnlbus:v:79:y:2006:i:2:p:963-986
    DOI: 10.1086/499145
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    Citations

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    Cited by:

    1. Yao, Yi & Yang, Rong & Liu, Zhiyuan & Hasan, Iftekhar, 2013. "Government intervention and institutional trading strategy: Evidence from a transition country," Global Finance Journal, Elsevier, vol. 24(1), pages 44-68.
    2. Zhong-Qiang Zhou & Jie Li & Wei Zhang & Xiong Xiong, 2022. "Government intervention model based on behavioral heterogeneity for China’s stock market," Financial Innovation, Springer;Southwestern University of Finance and Economics, vol. 8(1), pages 1-19, December.
    3. Markus K Brunnermeier & Michael Sockin & Wei Xiong, 2022. "China’s Model of Managing the Financial System," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 89(6), pages 3115-3153.
    4. Yao, Yi & Yang, Rong & Liu, Zhiyuan & Hasan, Iftekhar, 2012. "Government intervention and institutional trading strategy: Evidence from a transition country," BOFIT Discussion Papers 9/2012, Bank of Finland Institute for Emerging Economies (BOFIT).
    5. Xiao, MingFang & Cao, June & Chiang, Yao-Min, 2022. "Kiss the baby for the nurse's sake? - Guaranteeing employees' stock purchase against loss program," International Review of Financial Analysis, Elsevier, vol. 81(C).
    6. Ahmed, Rizwan & ullah, Subhan & Hudson, Robert & Gregoriou, Andros, 2023. "The implications of liquidity ratios: Evidence from Pakistan stock exchange limited," The Quarterly Review of Economics and Finance, Elsevier, vol. 87(C), pages 235-243.
    7. Zhu, Minchen & Lv, Dayong & Wu, Wenfeng, 2022. "Market stabilization fund and stock price crash risk: Evidence from the post-crash period," Journal of Economic Dynamics and Control, Elsevier, vol. 139(C).
    8. Markus K. Brunnermeier & Michael Sockin & Wei Xiong, 2020. "China’s Model of Managing the Financial System," Working Papers 2020-45, Princeton University. Economics Department..
    9. Chi, Yeguang & Li, Xiaoming, 2019. "Beauties of the emperor: An investigation of a Chinese government bailout," Journal of Financial Markets, Elsevier, vol. 44(C), pages 42-70.
    10. Jeetendra Dangol, 2008. "Unanticipated Political Events and Stock Returns: An Event Study," NRB Economic Review, Nepal Rastra Bank, Research Department, vol. 20, pages 86-110, April.
    11. Azevedo, Alcino & Karim, Mohamad & Gregoriou, Andros & Rhodes, Mark, 2014. "Stock price and volume effects associated with changes in the composition of the FTSE Bursa Malaysian KLCI," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 28(C), pages 20-35.
    12. Shirota, Toyoichiro, 2018. "Evaluating the Unconventional Monetary Policy in Stock Markets : A Semi-parametric Approach," Discussion paper series. A 322, Graduate School of Economics and Business Administration, Hokkaido University.
    13. Fegheh Majidi , Ali & Mohammadi , Ahmad & Nanvay Sabegh , Behnaz, 2017. "An Investigation of Convergence Hypothesis of Price Index in Asian Stock Markets," Journal of Money and Economy, Monetary and Banking Research Institute, Central Bank of the Islamic Republic of Iran, vol. 12(1), pages 73-88, January.
    14. repec:zbw:bofitp:2012_009 is not listed on IDEAS
    15. Li, Lu & Liu, Chunbo & Xu, Yongxin & Zhang, Xiaoyan & Zheng, Gaoping, 2024. "Crisis rescue via direct purchase: Evidence from China," Journal of Banking & Finance, Elsevier, vol. 165(C).

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