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Does the Behaviour of Commodity Stock Prices in India Constitute a Random Walk?


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1 St. Francis Institute of Management & Research, Mumbai, India
     

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Prices of underlying securities reveal informational content in an efficient market. The crux of the efficient market hypothesis [EMH] is that, at any point of time, stocks truly reflect in their market prices all the informational content. Such prices are fair to an extent that an investor cannot beat the market either through stock selection or market timing. The study is conducted to test whether the stock prices of companies engaged in the commodity sector confirm to a random walk approach. The random walk model states that companies 'stock prices are truly reflective of their fair values'. The daily returns of the Nifty Commodities Index and 30 companies listed on the National Stock Exchange are computed for the five-year calendar period from 1st January, 2011 to 31st December, 2015. Autocorrelation, Runs Test and GARCH Model (1,1) are the statistical tests used to empirically investigate, whether the price change at any point of time is influenced by the price changes that occurred during the preceding periods. The empirical evidence suggests that the stock prices of companies engaged in the commodity sector do not follow a random walk.

Keywords

EMH, Random Walk, Autocorrelation, Runs Test, GARCH (1,1) Model.
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  • Beck, T. and Levine, R. (2004). Stock Markets, Banks, and Growth: Panel Evidence. Journal of Banking and Finance, 24 (3), 423 – 442.

  • Capitaline Databases. (2016). Corporate database. Retrieved fro Capitaline, Data bases: http://www.capitaline.com.

  • Chatfield, C. The Analysis of Time Series: An Introduction. London: Chapman and Hall, 1980.

  • Fama, E. (1965), The Behaviour Of Stock Market Prices. The Journal of Business, 38(1), 34–105.

  • Fama (1970). Efficient Capital Markets: A Review Of Theory And Empirical Work. Journal of Finance, 25(2), 383–417.

  • Goldsmith, R.W. (1969). Financial Structure and Development. New Haven: Yale University Press.

  • Khan, A. Q., Ikram, S., and Mehtab, M. (2011). Testing weak form market efficiency of Indian capital market: Acase of National Stock Exchange (NSE) and Bombay Stock Exchange (BSE). African Journal of Marketing Management, 3(6), 115–127.

  • Lane. (2012). Financing Commodities Markets presented to the CFA Society of Calgary. Calgary, Alberta.

  • Mallikarjunappa, T. and D'Souza, J. J. (2015). Does the Indian Stock Market Exhibit Random Walk? Paradigm, 19(1), 1–20.

  • McKinnon, R. (1973). Money and Capital in Economic Development. Washington, D.C.: Brookings Institution.

  • MCX. (2011). Commodity Insights Year Book 2011. Retrieved from https://www.mcxindia.com/educationtraining/ publications/archived-series/commodityinsightsyearbook.

  • Nisar, S., and Hanif, M. (2012). Testing Weak Form Of Efficient Market Hypothesis: Empirical Evidence From South-Asia. World Applied Sciences Journal, 17(4), 414–427.


Abstract Views: 255

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  • Does the Behaviour of Commodity Stock Prices in India Constitute a Random Walk?

Abstract Views: 255  |  PDF Views: 1

Authors

Smita Jesudasan
St. Francis Institute of Management & Research, Mumbai, India

Abstract


Prices of underlying securities reveal informational content in an efficient market. The crux of the efficient market hypothesis [EMH] is that, at any point of time, stocks truly reflect in their market prices all the informational content. Such prices are fair to an extent that an investor cannot beat the market either through stock selection or market timing. The study is conducted to test whether the stock prices of companies engaged in the commodity sector confirm to a random walk approach. The random walk model states that companies 'stock prices are truly reflective of their fair values'. The daily returns of the Nifty Commodities Index and 30 companies listed on the National Stock Exchange are computed for the five-year calendar period from 1st January, 2011 to 31st December, 2015. Autocorrelation, Runs Test and GARCH Model (1,1) are the statistical tests used to empirically investigate, whether the price change at any point of time is influenced by the price changes that occurred during the preceding periods. The empirical evidence suggests that the stock prices of companies engaged in the commodity sector do not follow a random walk.

Keywords


EMH, Random Walk, Autocorrelation, Runs Test, GARCH (1,1) Model.

References