Stock Returns Volatility in an Emerging Market: The Pakistani Evidence

Fazal Husain () and Jamshed Uppal

MPRA Paper from University Library of Munich, Germany

Abstract: This paper examines stock returns volatility in the Pakistani equity market. Using daily stock prices of 36 companies, 8 sector indices, and the general market index, the AutoRegressive Conditional Heteroscedasticity (ARCH) class of models was applied. The analyses suggest that one of the factors causing high serial dependence in stock returns in the Pakistani equity market is the presence of conditional heteroscedasticity or volatility in stock returns and that even after controlling for volatility the returns in the market are, in general, predictable. The results show GARCH(1,1) to be an appropriate representation of conditional variance implying that current volatility in the market is significantly affected by the past volatilities. There is also strong evidence of persistence in variance in returns implying that shocks to volatility continue for a long period. However, after accounting for the structural shift due to opening of the market, the persistence was found to decline significantly.

Keywords: Stock Returns; Volatility; Pakistan; ARCH Models; Persistence (search for similar items in EconPapers)
JEL-codes: G10 G14 (search for similar items in EconPapers)
Date: 1999
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Published in Pakistan Journal of Applied Economics 1.15(1999): pp. 19-40

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Journal Article: STOCK RETURNS VOLATILITY IN AN EMERGING MARKET: The Pakistani Evidence (1999)
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Persistent link: https://EconPapers.repec.org/RePEc:pra:mprapa:5270

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