Stock Returns Predictability and Adaptive Market Hypothesis
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Abstract
This study is examining the predictability of stock returns and adaptive market hypothesis in the Stock Exchange of Thailand (SET) by using the Variance ratio test in 3 different methods including Lo-Mackinlay Variance Ratio (LMVR), Multiple Variance Ratio (MV), and Wild Bootstrap Multiple Variance Ratio (WBMV). The empirical result shows that an overall market is unpredictable, both before and after The United State of America’s financial crisis. However, we found that the MSCI/SET small-cap is not followed the EMH. Furthermore, we also investigate the Adaptive market hypothesis by using MV and WBMV with Rolling Windows framework and it represents that MSCI/SET large-cap and MSCI/SET small-cap are provided efficiency in some periods and inefficiency in some periods.
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