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CBN Journal of Applied Statistics (JAS)

Structural breaks

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Articles 1 - 3 of 3

Full-Text Articles in Economics

Portfolio Balance Approach To Asymmetries, Structural Breaks And Financial Crisis: Testing A Model For Nigeria, Portfolio Balance Theory, Oluwasegun B. Adekoya Jun 2020

Portfolio Balance Approach To Asymmetries, Structural Breaks And Financial Crisis: Testing A Model For Nigeria, Portfolio Balance Theory, Oluwasegun B. Adekoya

CBN Journal of Applied Statistics (JAS)

This study tests the Portfolio Balance Theory (PBT) for Nigeria for the period starting from September 1997 to September 2018. It extends the hypothesized linear inverse relationship between exchange rate and stock price to include asymmetries and structural breaks. It further examines the impact of the 2008 global financial crisis on the PBT to determine its stability after the crisis. The full sample results show that the PBT holds for Nigeria and asymmetries and structural breaks matter in the nexus between stock price and exchange rate. However, the impact of stock price on exchange rate diminished in the long-run with …


Structural Breaks, Cointegration And Demand For Money In Nigeria, Sani I. Doguwa, Olorunsola E. Olowofeso, Stephen O. U. Uyaebo, Ibrahim Adamu, Abiodun S. Bada Jun 2014

Structural Breaks, Cointegration And Demand For Money In Nigeria, Sani I. Doguwa, Olorunsola E. Olowofeso, Stephen O. U. Uyaebo, Ibrahim Adamu, Abiodun S. Bada

CBN Journal of Applied Statistics (JAS)

This paper estimates the money demand function in Nigeria in the aftermath of the recent global financial crisis and examines whether its underlying properties has changed over the years. Specifically, the existence of a stable long-run demand for money function during the period 1991:Q1-2013:Q4, while accounting for the possibility of structural breaks is investigated. The Gregory-Hansen residual based test for cointegration detected both intercept and regime shifts in 2007:Q1 as the null of no cointegration is rejected at 1 per cent significance level, indicating that long run relationship exists between real money supply, real income, real monetary policy rate, exchange …


A Kalman Filter Approach To Fisher Effect: Evidence From Nigeria, Omorogbe J. Asemota, Dahiru A. Bala Jun 2011

A Kalman Filter Approach To Fisher Effect: Evidence From Nigeria, Omorogbe J. Asemota, Dahiru A. Bala

CBN Journal of Applied Statistics (JAS)

This paper investigates evidence of a Fisher effect in Nigeria by employing quarterly CPI inflation and Nominal interest rates data. For a more robust result we conducted integration and cointegration tests in order to examine time-series properties of the variables. Using Co-integration and Kalman filter methodologies, the study did not find evidence of a full Fisher effect from 1961:1-2009:4. This result indicates that nominal interest rates do not respond one-for-one to changes in inflation rates in the long run despite the presence of positive relationship among the variables. Our study recommends the adoption of potent policies aimed at checking inflation …