Tests for weak form market efficiency in stock prices: Monte Carlo evidence
AbstractEfficiency in financial markets is tested by applying variance ratio (VR)tests, but unit root tests are also used by many, sometimes in addition to the VR tests. There is a lack of clarity in the literature about the implication of these test results when they seem to disagree. We distinguish between two different types of predictability, called "structural predictability" and "error predictability". Standard unit root tests pick up structural predictability. VR tests pick up both structural and error predictability.
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Bibliographic InfoPaper provided by Victoria University of Wellington, School of Economics and Finance in its series Working Paper Series with number 1993.
Date of creation: 2011
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Unit Root; Weak Form Efficiency; Random Walk; Autocorrelation; Variance Ratio;
This paper has been announced in the following NEP Reports:
- NEP-ALL-2012-02-27 (All new papers)
- NEP-ECM-2012-02-27 (Econometrics)
- NEP-FMK-2012-02-27 (Financial Markets)
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- 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.
- Andrew W. Lo & A. Craig MacKinlay, 1987.
"Stock Market Prices Do Not Follow Random Walks: Evidence From a Simple Specification Test,"
NBER Working Papers
2168, National Bureau of Economic Research, Inc.
- Andrew W. Lo, A. Craig MacKinlay, 1988. "Stock Market Prices do not Follow Random Walks: Evidence from a Simple Specification Test," Review of Financial Studies, Society for Financial Studies, vol. 1(1), pages 41-66.
- 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.
- Vasudeva Murthy & Kenneth Washer & John Wingender, 2011. "Are stock prices in the US nonstationary? Evidence from contemporary unit root tests," Applied Financial Economics, Taylor & Francis Journals, vol. 21(22), pages 1703-1709.
- Zeynel Abidin Ozdemir, 2008. "Efficient market hypothesis: evidence from a small open-economy," Applied Economics, Taylor & Francis Journals, Taylor & Francis Journals, vol. 40(5), pages 633-641.
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