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Does inflation have an impact on stock returns and volatility? Evidence from Nigeria and Ghana

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  • Shehu Usman Rano Aliyu

Abstract

This study seeks to apply the Generalized Autoregressive Conditional Heteroscedasticity (GARCH) model to assess the impact of inflation on stock market returns and volatility using monthly time series data from two West African countries, that is, Nigeria and Ghana. In addition, the impact of asymmetric shocks was investigated using the quadratic GARCH model developed by Sentana (1995), in both countries. Results for Nigeria show weak support for the hypothesis which states that bad news exert more adverse effect on stock market volatility than good news of the same magnitude; while a strong opposite case holds for Ghana. Furthermore, inflation rate and its 3-month average were found to have significant effect on stock market volatility in the two countries. Measures employed towards restraining inflation in the two countries, therefore, would certainly reduce stock market volatility, improve stock market returns and boost investor confidence.

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File URL: http://hdl.handle.net/10.1080/09603107.2011.617691
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Bibliographic Info

Article provided by Taylor & Francis Journals in its journal Applied Financial Economics.

Volume (Year): 22 (2012)
Issue (Month): 6 (March)
Pages: 427-435

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Handle: RePEc:taf:apfiec:v:22:y:2012:i:6:p:427-435

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  1. Schwert, G William, 1989. " Why Does Stock Market Volatility Change over Time?," Journal of Finance, American Finance Association, vol. 44(5), pages 1115-53, December.
  2. Nicole Davis & Ali Kutan, 2003. "Inflation and output as predictors of stock returns and volatility: international evidence," Applied Financial Economics, Taylor & Francis Journals, vol. 13(9), pages 693-700.
  3. Robert F. Engle & Victor K. Ng, 1991. "Measuring and Testing the Impact of News on Volatility," NBER Working Papers 3681, National Bureau of Economic Research, Inc.
  4. Robert F. Engle & Jose Gonzalo Rangel, 2005. "The Spline GARCH Model for Unconditional Volatility and its Global Macroeconomic Causes," Working Papers 2005/13, Czech National Bank, Research Department.
  5. Sentana,E., 1995. "Quadratic Arch Models," Papers 9517, Centro de Estudios Monetarios Y Financieros-.
  6. Roberto Rigobon & Brian Sack, 2002. "The impact of monetary policy on asset prices," Finance and Economics Discussion Series 2002-4, Board of Governors of the Federal Reserve System (U.S.).
  7. Kaul, Gautam, 1987. "Stock returns and inflation : The role of the monetary sector," Journal of Financial Economics, Elsevier, vol. 18(2), pages 253-276, June.
  8. Robert Engle, 2004. "Risk and Volatility: Econometric Models and Financial Practice," American Economic Review, American Economic Association, vol. 94(3), pages 405-420, June.
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Cited by:
  1. Aliyu, Shehu Usman Rano, 2011. "Reactions of stock market to monetary policy shocks during the global financial crisis: the Nigerian case," MPRA Paper 35581, University Library of Munich, Germany, revised 28 Dec 2011.

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