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Foreign Exchange News Announcements and the Volatility of Stock Returns in Nigeria

Journal of Economics and Business - SPOUDAI

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Title Foreign Exchange News Announcements and the Volatility of Stock Returns in Nigeria
 
Creator Omokehinde, Joshua Odutola
Abata, Matthew Adeolu
Migiro, Stephen Oseko
 
Subject —
Volatility, stock returns, exchange news, asymmetric, volatility persistence.
 
Description This paper examines the effect of foreign exchange news announcements on the volatility of stock returns in Nigeria, using the daily closing All-Share Index from The Nigerian Stock Exchange from 2000 to 2015. We extended existing literature by augmenting the EGARCH econometric model with exchange news announcements to specify both the conditional mean and volatility equations. The empirical results revealed a positive and significant effect of exchange news announcements on stock market volatility in Nigeria under symmetric conditional variance. However, there was strong evidence of asymmetric effect with negative exchange news which caused volatility to rise more following a large price rise than following a price fall of the same magnitude. The total impact of bad news had more distabilising effect on volatility than good news. The sum of ARCH and GARCH coefficients (α + β = 0.9) is approximately close to unity – indicating strong evidence of volatility persistence in the Nigerian stock market.

JEL Classification: C22, C58 & G12
 
Publisher University of Piraeus
 
Contributor —
 
Date 2017-10-31
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
—
 
Format application/pdf
 
Identifier http://spoudai.unipi.gr/index.php/spoudai/article/view/2605
 
Source SPOUDAI - Journal of Economics and Business; Vol 67, No 3 (2017); 3-17
2241-424X
1105-8919
 
Language eng
 
Relation http://spoudai.unipi.gr/index.php/spoudai/article/view/2605/2641
 
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