The weak-form efficiency of Asian stock markets: New evidence from generalized spectral martingale test

Lim , Kian Ping and Luo, Wei Wei (2012) The weak-form efficiency of Asian stock markets: New evidence from generalized spectral martingale test. Applied Economics Letters , 19 (10). pp. 905-908. ISSN 1350-4851

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Official URL: http://dx.doi.org/10.1080/13504851.2011.607123

Abstract

The most appropriate approach to test for weak-form market efficiency is to examine whether the stock returns are Martingale Difference Sequence (MDS). However, the MDS tests have been largely ignored by previous studies, as the empirical analysis is dominated by Variance Ratio (VR) tests and Independent and Identically Distributed (IID)-based nonlinearity tests. This article re-examines the weak-form efficiency of 14 Asian stock markets using the generalized spectral martingale test. The result shows that all the return series are not MDSs, indicating the presence of return predictability and hence market inefficiency.

Item Type:Article
Uncontrolled Keywords:Asian stock markets, Market efficiency, Martingale difference sequence, Return predictability
Subjects:?? HG4551-4598 ??
Divisions:SCHOOL > Labuan School of International Business and Finance
ID Code:3869
Deposited By:IR Admin
Deposited On:02 Apr 2012 15:38
Last Modified:18 Feb 2015 10:48

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