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Variance ratios, structural breaks and nonrandom walk behaviour in the Indian stock returns

  • Hiremath, Gourishankar S
  • Bandi, Kamaiah

The paper investigates the issue of behaviour of stock returns in India. A non-parametric variance ratio test is used to examine the issue. Largely the results indicate non-random walk behaviour of Indian stock market. However, the sub-sample analysis of stock returns based on structural breaks show an increasing mean-reverting tendency after occurrence of structural breaks in the series. The events associated with break dates mainly are volatile exchange rate movements, oil shocks, internet bubble burst, sub-prime crisis, global economic meltdown and political uncertainties. Rejection of random walk is relatively stronger for smaller and medium indices than larger indices implying that market capitalization and liquidity play a greater role in improving efficiency of the market.

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File URL: http://mpra.ub.uni-muenchen.de/48710/1/MPRA_paper_48710.pdf
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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 48710.

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Date of creation: 2012
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Publication status: Published in Journal of Business & Economic Studies 18.2(2012): pp. 62-81
Handle: RePEc:pra:mprapa:48710
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