A Variance-Ratio Test of Random Walk in International Stock Markets
Abstract
Over the past several decades, researchers in finance, economics and other related fields conduct extensive studies to examine whether stock prices follow random walk. They, using various statistical techniques, often document mixed findings. In this paper, we test random walk hypothesis using the relatively fresh data, 34 MSCI country indexes from January 5, 1988 to December 28, 2010. We find that majority of these markets (25 out of 34 markets) follow random walk. Results, however, indicate that 4 out of 9 emerging and developing countries follow non-random walk.Over the past several decades, researchers in finance, economics and other related fields conduct extensive studies to examine whether stock prices follow random walk. They, using various statistical techniques, often document mixed findings. In this paper, we test random walk hypothesis using the relatively fresh data, 34 MSCI country indexes from January 5, 1988 to December 28, 2010. We find that majority of these markets (25 out of 34 markets) follow random walk. Results, however, indicate that 4 out of 9 emerging and developing countries follow non-random walk.
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Journal Title
The Empirical Economics Letters
Volume
11
Issue
8
Publisher URI
Copyright Statement
© 2012 Rajshahi University. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Subject
Finance
Economic Theory
Applied Economics
Econometrics