Is the Mongolian Equity Market Efficient? Empirical Evidence from Tests of Weak-Form Efficiency
AbstractThis paper investigates the empirical validity of the weak-form of the Efficient Market Hypothesis in the Mongolian equity market over Jan 1999 to Jul 2012. We examine the characteristics of the market by testing the fit of returns to a normal distribution using the Jarque-Bera Test, and find strong evidence against normality. The data also exhibits positive skewness and a high level of excess kurtosis. Next, we test for the presence of autocorrelation using the Ljung-Box Q Test and the non-parametric Runs Test, and find strong evidence against the null hypothesis of no autocorrelation for both of these tests. Finally, we test the associated Random Walk Hypothesis using the Augmented Dickey- Fuller Test and the Chow-Denning Multiple Variance Ratio (MVR) Test. We reject the null hypothesis of the presence of a unit root for the Augmented Dickey-Fuller Test. In addition, we find evidence against the Random Walk Hypothesis even after adjusting for the possible presence of heteroscedasticity in the MVR Test. Since all the tests present results consistent with weak-form inefficiency, we reject the weak-form of the Efficient Market Hypothesis for the Mongolian equity market.
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Bibliographic InfoPaper provided by University Library of Munich, Germany in its series MPRA Paper with number 41834.
Date of creation: Sep 2012
Date of revision:
Weak-form efficient market hypothesis; Mongolian equity market; Random walk hypothesis;
Find related papers by JEL classification:
- G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
- G1 - Financial Economics - - General Financial Markets
This paper has been announced in the following NEP Reports:
- NEP-ALL-2012-10-20 (All new papers)
- NEP-CFN-2012-10-20 (Corporate Finance)
- NEP-TRA-2012-10-20 (Transition Economics)
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- Phillips, P C B, 1987.
"Time Series Regression with a Unit Root,"
Econometric Society, vol. 55(2), pages 277-301, March.
- Peter C.B. Phillips, 1985. "Time Series Regression with a Unit Root," Cowles Foundation Discussion Papers 740R, Cowles Foundation for Research in Economics, Yale University, revised Feb 1986.
- Tom Doan, . "PPUNIT: RATS procedure to perform Phillips-Perron Unit Root test," Statistical Software Components RTS00160, Boston College Department of Economics.
- Riad Dahel & Belkacem Laabas, 1999. "The Behavior of Stock Prices in the GCC Markets," Working Papers 9917, Economic Research Forum, revised Jun 1999.
- Robert J. Shiller & Pierre Perron, 1985.
"Testing the Random Walk Hypothesis: Power versus Frequency of Observation,"
NBER Technical Working Papers
0045, National Bureau of Economic Research, Inc.
- Shiller, Robert J. & Perron, Pierre, 1985. "Testing the random walk hypothesis : Power versus frequency of observation," Economics Letters, Elsevier, vol. 18(4), pages 381-386.
- Pierre Perron & Robert J. Shiller, 1984. "Testing the Random Walk Hypothesis: Power Versus Frequency of Observation," Cowles Foundation Discussion Papers 732, Cowles Foundation for Research in Economics, Yale University.
- Lin Peng & Wei Xiong, 2005.
"Investor Attention: Overconfidence and Category Learning,"
NBER Working Papers
11400, National Bureau of Economic Research, Inc.
- Peng, Lin & Xiong, Wei, 2006. "Investor attention, overconfidence and category learning," Journal of Financial Economics, Elsevier, vol. 80(3), pages 563-602, June.
- Maria Rosa Borges, 2010.
"Efficient market hypothesis in European stock markets,"
The European Journal of Finance,
Taylor & Francis Journals, vol. 16(7), pages 711-726.
- Maria Rosa Borges, 2008. "Efficient Market Hypothesis in European Stock Markets," Working Papers Department of Economics 2008/20, ISEG - School of Economics and Management, Department of Economics, University of Lisbon.
- Larcker, David F. & Gordon, Lawrence A. & Pinches, George E., 1980. "Testing for Market Efficiency: A Comparison of the Cumulative Average Residual Methodology and Intervention Analysis," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 15(02), pages 267-287, June.
- Graham Smith & Keith Jefferis & Hyun-Jung Ryoo, 2002. "African stock markets: multiple variance ratio tests of random walks," Applied Financial Economics, Taylor & Francis Journals, vol. 12(7), pages 475-484.
- Solnik, Bruno H, 1973. "Note on the Validity of the Random Walk for European Stock Prices," Journal of Finance, American Finance Association, vol. 28(5), pages 1151-59, December.
- Chow, K. Victor & Denning, Karen C., 1993.
"A simple multiple variance ratio test,"
Journal of Econometrics,
Elsevier, vol. 58(3), pages 385-401, August.
- Tom Doan, . "CHOWDENNING: RATS procedure to perform Chow-Denning multiple variance ratio test," Statistical Software Components RTS00035, Boston College Department of Economics.
- 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.
- Fama, Eugene F, 1991. " Efficient Capital Markets: II," Journal of Finance, American Finance Association, vol. 46(5), pages 1575-617, December.
- Ojah, Kalu & Karemera, David, 1999. "Random Walks and Market Efficiency Tests of Latin American Emerging Equity Markets: A Revisit," The Financial Review, Eastern Finance Association, vol. 34(2), pages 57-72, May.
- Dickey, David A & Fuller, Wayne A, 1981. "Likelihood Ratio Statistics for Autoregressive Time Series with a Unit Root," Econometrica, Econometric Society, vol. 49(4), pages 1057-72, June.
- Errunza, Vihang R. & Losq, Etienne, 1985. "The behavior of stock prices on LDC markets," Journal of Banking & Finance, Elsevier, vol. 9(4), pages 561-575, December.
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