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Autor:innen: 
Erscheinungsjahr: 
2013
Quellenangabe: 
[Journal:] CBN Journal of Applied Statistics [ISSN:] 2476-8472 [Volume:] 04 [Issue:] 2 [Publisher:] The Central Bank of Nigeria [Place:] Abuja [Year:] 2013 [Pages:] 69-85
Verlag: 
The Central Bank of Nigeria, Abuja
Zusammenfassung: 
This paper attempts to fit the best Generalized Autoregressive Conditional Heteroscedastic (GARCH) model for All Share Index (ASI) of Nigerian Stock Exchange (NSE) returns. A search is made on various GARCH variants specified on the assumptions of stationarity and asymmetry. Fractionally integrated types are also considered to capture the possibility of return series having property of long range dependency. The parameter estimations are carried out on the assumptions of normality and non-normality of GARCH innovations, with models and forecasts evaluated using information criteria and loss functions respectively. Under normality assumption, Hyperbolic GARCH (HYGARCH(1,d,1)) model is selected and Integrated GARCH (IGARCH(1,1)) and Fractionally Integrated Exponential GARCH (FIEGARCH(1,d,1)) models selected under the Student t and Generalized Error Distributions. Of these three models, HYGARCH(1,d,1) is the overall best model.
Schlagwörter: 
All Share Index
Daily stock prices
GARCH
Nigerian Stock Exchange
JEL: 
C22
G14
G15
Dokumentart: 
Article

Datei(en):
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