IDEAS home Printed from https://ideas.repec.org/a/sae/emffin/v8y2009i3p315-340.html
   My bibliography  Save this article

Stock Market Efficiency before and after a Financial Liberalisation Reform

Author

Listed:
  • Michail Karoglou

    (Michail Karoglou is at the Department of Economics Ridley Building 1 (5.17), Newcastle Business School, Newcastle upon Tyne, NE1 7RU, UK, e-mail: m.karoglou@ncl.ac.uk)

Abstract

This article focuses on the deviations from normality of stock returns before and after a financial liberalisation reform, and shows the extent to which inference based on statistical measures of stock market efficiency can be affected by not controlling for breaks. Drawing from recent advances in the econometrics of structural change, it compares the distribution of the returns of five East Asian emerging markets when breaks in the mean and variance are either (i) imposed using certain official liberalisation dates or (ii) detected non-parametrically using a data-driven procedure. The results suggest that measuring deviations from normality of stock returns with no provision for potentially existing breaks incorporates substantial bias. This is likely to severely affect any inference based on the corresponding descriptive or test statistics.

Suggested Citation

  • Michail Karoglou, 2009. "Stock Market Efficiency before and after a Financial Liberalisation Reform," Journal of Emerging Market Finance, Institute for Financial Management and Research, vol. 8(3), pages 315-340, September.
    • Handle: RePEc:sae:emffin:v:8:y:2009:i:3:p:315-340
    DOI: 10.1177/097265270900800304
    as

    Download full text from publisher

    File URL: https://journals.sagepub.com/doi/10.1177/097265270900800304
    Download Restriction: no
    File URL: https://libkey.io/10.1177/097265270900800304?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Geert Bekaert & Campbell R. Harvey, 2000. "Foreign Speculators and Emerging Equity Markets," Journal of Finance, American Finance Association, vol. 55(2), pages 565-613, April.
    2. Utpal Bhattacharya & Hazem Daouk, 2002. "The World Price of Insider Trading," Journal of Finance, American Finance Association, vol. 57(1), pages 75-108, February.
    3. Michail Karoglou, 2010. "Breaking down the non-normality of stock returns," The European Journal of Finance, Taylor & Francis Journals, vol. 16(1), pages 79-95.
    4. Demetriades, Panicos O. & Luintel, Kul B., 2001. "Financial restraints in the South Korean miracle," Journal of Development Economics, Elsevier, vol. 64(2), pages 459-479, April.
    5. Bekaert, Geert & Harvey, Campbell R., 1997. "Emerging equity market volatility," Journal of Financial Economics, Elsevier, vol. 43(1), pages 29-77, January.
    6. De Santis, Giorgio & imrohoroglu, Selahattin, 1997. "Stock returns and volatility in emerging financial markets," Journal of International Money and Finance, Elsevier, vol. 16(4), pages 561-579, August.
    7. Jensen, Michael C., 1978. "Some anomalous evidence regarding market efficiency," Journal of Financial Economics, Elsevier, vol. 6(2-3), pages 95-101.
    8. Cunado, Juncal & Gomez Biscarri, Javier & Perez de Gracia, Fernando, 2006. "Changes in the dynamic behavior of emerging market volatility: Revisiting the effects of financial liberalization," Emerging Markets Review, Elsevier, vol. 7(3), pages 261-278, September.
    9. Summers, Lawrence H, 1986. "Does the Stock Market Rationally Reflect Fundamental Values?," Journal of Finance, American Finance Association, vol. 41(3), pages 591-601, July.
    10. Lamoureux, Christopher G & Lastrapes, William D, 1990. "Heteroskedasticity in Stock Return Data: Volume versus GARCH Effects," Journal of Finance, American Finance Association, vol. 45(1), pages 221-229, March.
    11. Konstantinos Kassimatis, 2002. "Financial liberalization and stock market volatility in selected developing countries," Applied Financial Economics, Taylor & Francis Journals, vol. 12(6), pages 389-394.
    12. Juncal Cuñado & Javier Gómez Biscarri & Fernando Perez de Gracia, 2006. "Changes in the Dynamic Behavior of Emerging Market Volatility: Revisiting the Effects of Financial L," Faculty Working Papers 01/06, School of Economics and Business Administration, University of Navarra.
    13. Clark, Peter K, 1973. "A Subordinated Stochastic Process Model with Finite Variance for Speculative Prices," Econometrica, Econometric Society, vol. 41(1), pages 135-155, January.
    14. Fama, Eugene F, 1970. "Efficient Capital Markets: A Review of Theory and Empirical Work," Journal of Finance, American Finance Association, vol. 25(2), pages 383-417, May.
    15. Kim, E Han & Singal, Vijay, 2000. "Stock Market Openings: Experience of Emerging Economies," The Journal of Business, University of Chicago Press, vol. 73(1), pages 25-66, January.
    16. Bollerslev, Tim, 1987. "A Conditionally Heteroskedastic Time Series Model for Speculative Prices and Rates of Return," The Review of Economics and Statistics, MIT Press, vol. 69(3), pages 542-547, August.
    17. H. R. Seddighi & W. Nian, 2004. "The Chinese stock exchange market: operations and efficiency," Applied Financial Economics, Taylor & Francis Journals, vol. 14(11), pages 785-797.
    18. Jayasuriya, Shamila, 2005. "Stock market liberalization and volatility in the presence of favorable market characteristics and institutions," Emerging Markets Review, Elsevier, vol. 6(2), pages 170-191, June.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Michail Karoglou & Panicos Demetriades & Siong Law, 2011. "One date, one break?," Empirical Economics, Springer, vol. 41(1), pages 7-24, August.
    2. Ben Rejeb, Aymen & Boughrara, Adel, 2013. "Financial liberalization and stock markets efficiency: New evidence from emerging economies," Emerging Markets Review, Elsevier, vol. 17(C), pages 186-208.
    3. Aymen Ben Rejeb & Adel Boughrara, 2014. "The relationship between financial liberalization and stock market volatility: the mediating role of financial crises," Journal of Economic Policy Reform, Taylor & Francis Journals, vol. 17(1), pages 46-70, March.
    4. Duc NGUYEN, 2008. "An empirical analysis of structural changes in emerging market volatility," Economics Bulletin, AccessEcon, vol. 6(10), pages 1-10.
    5. Duc Khuong Nguyen, 2010. "La dynamique de la volatilité boursière autour de l'ouverture des marchés de capitaux," Economie & Prévision, La Documentation Française, vol. 0(1), pages 65-82.
    6. repec:ebl:ecbull:v:6:y:2008:i:10:p:1-10 is not listed on IDEAS
    7. Duc Khuong Nguyen & Mondher Bellalah, 2007. "Testing for Structural Breaks and Dynamic Changes in Emerging Market Volatility," Working Papers 02, Development and Policies Research Center (DEPOCEN), Vietnam.
    8. Li, Xiao-Ming & Rose, Lawrence C., 2009. "The tail risk of emerging stock markets," Emerging Markets Review, Elsevier, vol. 10(4), pages 242-256, December.
    9. Wang, Ping & Theobald, Mike, 2008. "Regime-switching volatility of six East Asian emerging markets," Research in International Business and Finance, Elsevier, vol. 22(3), pages 267-283, September.
    10. Buchanan, Bonnie G. & English II, Philip C. & Gordon, Rachel, 2011. "Emerging market benefits, investability and the rule of law," Emerging Markets Review, Elsevier, vol. 12(1), pages 47-60, March.
    11. Camilleri, Silvio John & Galea, Gabriella, 2009. "The Diversification Potential Offered by Emerging Markets in Recent Years," MPRA Paper 62491, University Library of Munich, Germany.
    12. Laopodis, Nikiforos T., 2004. "Financial market liberalization and stock market efficiency: Evidence from the Athens Stock Exchange," Global Finance Journal, Elsevier, vol. 15(2), pages 103-123, August.
    13. Juncal Cunado Eizaguirre & Javier Gomez Biscarri & Fernando Perez de Gracia Hidalgo, 2009. "Financial liberalization, stock market volatility and outliers in emerging economies," Applied Financial Economics, Taylor & Francis Journals, vol. 19(10), pages 809-823.
    14. Diamandis, Panayiotis F., 2008. "Financial liberalization and changes in the dynamic behaviour of emerging market volatility: Evidence from four Latin American equity markets," Research in International Business and Finance, Elsevier, vol. 22(3), pages 362-377, September.
    15. Umutlu, Mehmet & Akdeniz, Levent & Altay-Salih, Aslihan, 2010. "The degree of financial liberalization and aggregated stock-return volatility in emerging markets," Journal of Banking & Finance, Elsevier, vol. 34(3), pages 509-521, March.
    16. Teulon, Frédéric & Guesmi, Khaled & Mankai, Selim, 2014. "Regional stock market integration in Singapore: A multivariate analysis," Economic Modelling, Elsevier, vol. 43(C), pages 217-224.
    17. Vieito, João Paulo & Wong, Wing-Keung & Chow, Sheung Chi, 2016. "Stock Market Liberalizations and Efficiency: The Case of Latin America," MPRA Paper 68949, University Library of Munich, Germany.
    18. Mohamed El Hedi Arouri & Mondher Bellalah & Duc Khuong Nguyen, 2010. "The comovements in international stock markets: new evidence from Latin American emerging countries," Applied Economics Letters, Taylor & Francis Journals, vol. 17(13), pages 1323-1328.
    19. Chong-Chuo Chang & Oshamah Lin Lin & Oshamah Yu-Cheng Chang & Oshamah Kun-Zhan Hsu, 2023. "Impact of Financial Liberalization on Firm Risk," Advances in Decision Sciences, Asia University, Taiwan, vol. 27(3), pages 14-45, September.
    20. Ghassan, Hassan B. & Alhajhoj, Hassan R., 2013. "اختبار أثر التقلب العنقودي لمؤشر تداول باستخدام الارتباط الذاتي المدحرج [Test of Clustering Volatility of TASI index using Rolling Autocorrelation]," MPRA Paper 54630, University Library of Munich, Germany, revised 2013.
    21. Wang, Jianxin, 2007. "Foreign equity trading and emerging market volatility: Evidence from Indonesia and Thailand," Journal of Development Economics, Elsevier, vol. 84(2), pages 798-811, November.

    More about this item

    Keywords

    JEL Classification: C22; JEL Classification: G14; JEL Classification: C14; JEL Classification: C51; Financial liberalisation; volatility; breaks; stock market efficiency;
    All these keywords.

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • C14 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Semiparametric and Nonparametric Methods: General
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:sae:emffin:v:8:y:2009:i:3:p:315-340. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: SAGE Publications (email available below). General contact details of provider: http://www.ifmr.ac.in .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.