Is the Indian Stock Market efficient - A comprehensive study of Bombay Stock Exchange Indices

Achal Awasthi and Oleg Malafeyev

Papers from arXiv.org

Abstract: How an investor invests in the market is largely influenced by the market efficiency because if a market is efficient, it is extremely difficult to make excessive returns because in an efficient market there will be no undervalued securities i.e. securities whose value is less than its assumed intrinsic value, which offer returns that are higher than the deserved expected returns, given their risk. However, there is a possibility of making excessive returns if the market is not efficient. This article analyses the five popular stock indices of BSE. This would not only test the efficiency of the Indian Stock Market but also test the random walk nature of the stock market. The study undertaken in this paper has provided strong evidence in favor of the inefficient form of the Indian Stock Market. The series of stock indices in the Indian Stock Market are found to be biased random time series and the random walk model can't be applied in the Indian Stock Market. This study confirms that there is a drift in market efficiency and investors can capitalize on this by correctly choosing the securities that are undervalued.

Date: 2015-10
New Economics Papers: this item is included in nep-fmk
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