Is South Korea's stock market efficient? A note
AbstractIn an attempt to examine efficiency of South Korea's stock market (SKM), Narayan and Smyth (2004) used a battery of unit root tests to investigate the random walk hypothesis and on the basis of the reported evidence for unit root, they concluded that the SKM is efficient. The authors have unfortunately confused random walk with unit root hypothesis. The present note stresses the fact that it is insufficient to test for stationarity when examining efficiency, casting serious doubt on Narayan and Smyth's conclusions. Furthermore, we provide comments on the shortfalls of the unit roots tests employed and not accounted for in Narayan and Smyth's study which may lead to spurious results.
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Bibliographic InfoArticle provided by Taylor & Francis Journals in its journal Applied Economics Letters.
Volume (Year): 14 (2007)
Issue (Month): 1 ()
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- Zivot, Eric & Andrews, Donald W K, 2002.
"Further Evidence on the Great Crash, the Oil-Price Shock, and the Unit-Root Hypothesis,"
Journal of Business & Economic Statistics,
American Statistical Association, vol. 20(1), pages 25-44, January.
- Zivot, Eric & Andrews, Donald W K, 1992. "Further Evidence on the Great Crash, the Oil-Price Shock, and the Unit-Root Hypothesis," Journal of Business & Economic Statistics, American Statistical Association, vol. 10(3), pages 251-70, July.
- Eric Zivot & Donald W.K. Andrews, 1990. "Further Evidence on the Great Crash, the Oil Price Shock, and the Unit Root Hypothesis," Cowles Foundation Discussion Papers 944, Cowles Foundation for Research in Economics, Yale University.
- Lutz Kilian & Lee E. Ohanian, 1998. "Is there a trend break in U.S. GNP? A macroeconomic perspective," Staff Report 244, Federal Reserve Bank of Minneapolis.
- repec:att:wimass:9520 is not listed on IDEAS
- Paresh Kumar Narayan & Russell Smyth, 2004. "Is South Korea's stock market efficient?," Applied Economics Letters, Taylor & Francis Journals, vol. 11(11), pages 707-710.
- Samir Saadi & Devinder Gandhi & Shantanu Dutta, 2006. "Testing For Nonlinearity & Modeling Volatility In Emerging Capital Markets: The Case Of Tunisia," International Journal of Theoretical and Applied Finance (IJTAF), World Scientific Publishing Co. Pte. Ltd., vol. 9(07), pages 1021-1050.
- John Y. Campbell & Pierre Perron, 1991.
"Pitfalls and Opportunities: What Macroeconomists Should Know About Unit Roots,"
NBER Technical Working Papers
0100, National Bureau of Economic Research, Inc.
- John Y. Campbell & Pierre Perron, 1991. "Pitfalls and Opportunities: What Macroeconomists Should Know About Unit Roots," NBER Chapters, in: NBER Macroeconomics Annual 1991, Volume 6, pages 141-220 National Bureau of Economic Research, Inc.
- Campbell, J.Y. & Perron, P., 1991. "Pitfalls and Opportunities: What Macroeconomics should know about unit roots," Papers 360, Princeton, Department of Economics - Econometric Research Program.
- Campbell, John & Perron, Pierre, 1991. "Pitfalls and Opportunities: What Macroeconomists Should Know about Unit Roots," Scholarly Articles 3374863, Harvard University Department of Economics.
- Kim, Tae-Hwan & Leybourne, Stephen J & Newbold, Paul, 2000. " Spurious Rejections by Perron Tests in the Presence of a Break," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 62(3), pages 433-44, July.
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