This paper investigated the monthly seasonal effect in the Nigerian stock market using the EGARCH-in-mean model in the light of banking reforms, insurance reform, stock market crash and the global financial crisis using daily returns over the period 4 January 2004 to March 2, 2009.The result shows the absence of monthly effect in stock returns but there exists the July and August effects in stock volatility. It is found that, in the Nigerian stock market, returns show persistence in the volatility and clustering and asymmetric properties. The results show that volatility is persistent and there is a leverage effect supporting the work of Nelson (1991). The study found little evidence on the relationship between stock returns and risk as measured by its own volatility.

(2009). Stock return volatility, global financial crisis and the monthly seasonal effect on the Nigerian stock exchange [journal article - articolo]. In SAVINGS AND DEVELOPMENT. Retrieved from http://hdl.handle.net/10446/27448

Stock return volatility, global financial crisis and the monthly seasonal effect on the Nigerian stock exchange

2009-01-01

Abstract

This paper investigated the monthly seasonal effect in the Nigerian stock market using the EGARCH-in-mean model in the light of banking reforms, insurance reform, stock market crash and the global financial crisis using daily returns over the period 4 January 2004 to March 2, 2009.The result shows the absence of monthly effect in stock returns but there exists the July and August effects in stock volatility. It is found that, in the Nigerian stock market, returns show persistence in the volatility and clustering and asymmetric properties. The results show that volatility is persistent and there is a leverage effect supporting the work of Nelson (1991). The study found little evidence on the relationship between stock returns and risk as measured by its own volatility.
articolo
2009
Cet article explore les fluctuations mensuelles à l’intérieur du marché boursier Nigérien, et ce à l’aide d’un modèle EGARCH-M qui tient également compte des réformes du secteur banquier, de la réforme des assurances, du krach boursier et de la crise financière globale, en se basant sur les recette journalière de la période allant du 4 janvier 2004 au 2 mars 2009. On en déduit l’absence d’un effet mensuel sur les recettes financières, toutefois, l’on remarque une majeure volatilité du marché boursier pendant les mois de juillet et d’aout. De plus, on observe que l’instabilité, ainsi que le regroupement et l’asymétrie des recettes du marché boursier Nigérien, est récurrente. Les résultats démontrent l’existence d’une volatilité récurrente et d’un effet de levier, comme souligné par Nelson (1991). Cette étude a trouvé qu’il n’existe que de faibles preuves d’une corrélation entre les recettes financières et les facteurs de risque, mesuré sur base de la volatilité même.
Olowe, RUFUS AYODEJI
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/27448
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