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Nexus Of Exchange Rate Deregulation And Agricultural Share Of Gross Domestic Product In Nigeria, Oyakhilomen Oyinbo, Falola Abraham, Grace Z. Rekwot Dec 2014

Nexus Of Exchange Rate Deregulation And Agricultural Share Of Gross Domestic Product In Nigeria, Oyakhilomen Oyinbo, Falola Abraham, Grace Z. Rekwot

CBN Journal of Applied Statistics (JAS)

The kernel of this study was to examine the causal relationship between exchange rate deregulation and the agricultural share of gross domestic product in Nigeria from an econometric perspective using time series data spanning a period of 26 years (1986 – 2011). Data on exchange rate and gross domestic product were analysed using augmented dickey fuller unit root test, unrestricted vector autoregression, pairwise granger causality and vector error correction model. The results showed the existence of unidirectional causality from exchange rate to agricultural share of gross domestic production and also, exchange rate deregulation had negative influence on agricultural share of …


Forecasting Nigerian Stock Market Returns Using Arima And Artificial Neural Network Models, Godknows M. Isenah, Olusanya E. Olubusoye Dec 2014

Forecasting Nigerian Stock Market Returns Using Arima And Artificial Neural Network Models, Godknows M. Isenah, Olusanya E. Olubusoye

CBN Journal of Applied Statistics (JAS)

The study reports empirical evidence that artificial neural network based models are applicable to forecasting of stock market returns. The Nigerian stock market logarithmic returns time series was tested for the presence of memory using the Hurst coefficient before the models were trained. The test showed that the logarithmic returns process is not a random walk and that the Nigerian stock market is not efficient. Two artificial neural network based models were developed in the study. These networks are TECH (4-3-1) and TECH (3-3-1)whose out-of-sample forecast performance was compared with a baseline ARIMA (3,0,1) model. The results obtained in the …


Relationship Between Money Supply And Government Revenues In Nigeria, Yakubu Musa, Umar Usman, Aminu B. Zoramawa Dec 2014

Relationship Between Money Supply And Government Revenues In Nigeria, Yakubu Musa, Umar Usman, Aminu B. Zoramawa

CBN Journal of Applied Statistics (JAS)

The insights on the long run relationship amongst money supply and government revenues are of significant importance for monetary-fiscal policy formulation in a developing country like Nigeria. Taking into account the vital importance of these two variables, we empirically analyzed the long-run relationships and dynamic interactions between the money supply (broad money M2) and government revenues in Nigeria using an Autoregressive Distributed Lag (ARDL) bounds testing approach. The study spans the period 1970 to 2010. From the results, it is evident that there is the existence of a long run relationship between money supply and revenues when money supply is …


Cointegration Analysis Of Public Expenditure On Tertiary Education And Economic Growth In Nigeria, Japheth T. Torruam, Moses A. Chiawa, Cyprian C. Abur Dec 2014

Cointegration Analysis Of Public Expenditure On Tertiary Education And Economic Growth In Nigeria, Japheth T. Torruam, Moses A. Chiawa, Cyprian C. Abur

CBN Journal of Applied Statistics (JAS)

The paper investigates the Impact of public expenditure on tertiary education and economic growth in Nigeria using time series data for the period 1990- 2011.The econometric methodology employed was cointegration and error correction technique. The study concludes that public expenditure on tertiary education has positive impact on economic growth in Nigeria. The study recommended that government and private sectors should partner by mobilizing resources to furnish tertiary institutions and equip them with adequate facilities in order to enhance tertiary education development for sustainable economic growth.


The Balance Sheet Channel Of Monetary Policy Transmission: Evidence From Nigeria, Olorunsola E. Olowofeso, Abiodun S. Bada, Kufre J. Bassey, Kumafan S. Dzaan Dec 2014

The Balance Sheet Channel Of Monetary Policy Transmission: Evidence From Nigeria, Olorunsola E. Olowofeso, Abiodun S. Bada, Kufre J. Bassey, Kumafan S. Dzaan

CBN Journal of Applied Statistics (JAS)

This paper assesses the existence of a balance sheet channel of monetary policy transmission in Nigeria by examining whether variation in the official interest rate, with respect to the 2007- 2008 global financial crisis, feeds through to the deposit money banks (DMBs) balance sheets, and ultimately reflects in output and prices. Using quarterly macroeconomic data and stock from 2002 to 2012, the study employs an ordinary least squares (OLS) and autoregressive (VAR) framework to investigate the linkages between policy, DMB balance sheet, output and price. The results reveal the existence of a balance sheet channel in Nigeria with a significant …


Testing Volatility In Nigeria Stock Market Using Garch Models, Ngozi V. Atoi Dec 2014

Testing Volatility In Nigeria Stock Market Using Garch Models, Ngozi V. Atoi

CBN Journal of Applied Statistics (JAS)

The contributions of error distributions have been ignored while modeling stock market volatility in Nigeria and studies have shown that the application of appropriate error distribution in volatility model enhances efficiency of the model. Using Nigeria All Share Index from January 2, 2008 to February 11, 2013, this study estimates first order symmetric and asymmetric volatility models each in Normal, Student’s-t and generalized error distributions with the view to selecting the best forecasting volatility model with the most appropriate error distribution. The results suggest the presence of leverage effect meaning that volatility responds more to bad news than it does …


Determinants Of Economic Growth In Nigeria, Kazeem B. Ajide Dec 2014

Determinants Of Economic Growth In Nigeria, Kazeem B. Ajide

CBN Journal of Applied Statistics (JAS)

This paper investigates the role of Frazer Economic Freedom Index on FDI-growth relationship over the period spanning 1980 through 2010 using annual time series data. A Multivariate Regression approach was employed to estimate augmented growth models. Quite intriguingly, the impact of disaggregated economic freedom over aggregated composite index was found profoundly revealing. Emanated results show that the same set of variables like labour, life expectancy, degree of openness and economic freedom are factors affecting the level of economic growth in both but at different levels of significance. However, the estimates of disaggregated components of economic freedom data show that the …


Modification Of Hansen-Hurwitz’S Estimators For Negatively Correlated Variates, Jonathan A. Ikughur Jun 2014

Modification Of Hansen-Hurwitz’S Estimators For Negatively Correlated Variates, Jonathan A. Ikughur

CBN Journal of Applied Statistics (JAS)

Most estimators in probability proportional to size (PPS) with replacement (WR) sampling design are defined for positively correlated variables. The literature on estimators involving negatively correlated variates is underdeveloped. This study utilized the law of inverse proportion to derive selection probabilities to modify the Hansen-Hurwitz’s estimator for use when negatively correlated variables are encountered in surveys. The suggested estimator is unbiased and could perform better than other estimators when information conveyed by correlation coefficient is used.


The Relationships Of Inflationary Trend, Agricultural Productivity And Economic Growth In Nigeria, Oyakhilomen Oyinbo, Grace Z. Rekwot Jun 2014

The Relationships Of Inflationary Trend, Agricultural Productivity And Economic Growth In Nigeria, Oyakhilomen Oyinbo, Grace Z. Rekwot

CBN Journal of Applied Statistics (JAS)

This study investigates the links existing between inflationary trend, agricultural productivity and economic growth in Nigeria using time series data spanning from 1970 to 2011. The results of the analyses indicate a unidirectional causality from inflationary trend to agricultural productivity, unidirectional causality from agricultural productivity to economic growth with no causality between inflationary trend and economic growth. Based on these findings, it is recommended that the Central Bank of Nigeria should pay more attention to the trend of inflation and pursue policies that will ensure single digit inflation.


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 …


Modeling And Forecasting Currency In Circulation For Liquidity Management In Nigeria, Alvan Ikoku Jun 2014

Modeling And Forecasting Currency In Circulation For Liquidity Management In Nigeria, Alvan Ikoku

CBN Journal of Applied Statistics (JAS)

This paper presents forecasts of currency in circulation prepared for liquidity management at the Central Bank of Nigeria. Forecasts were produced using ARIMA, ARIMA with structural variables, VAR and VEC models. The performance of the forecasts was then evaluated under a rolling forecast scenario, where the estimation sample is augmented by one observation and the forecast sample is brought forward. The evaluation of the forecasts was based on average performance over a number of rolling forecasts. We found that the most accurate models were mixed models with structural as well as ARIMA components, augmented by seasonal and dummy variables. We …


Measuring Respondent Burden In Nigeria: A Case Study Of Central Bank Of Nigeria Enterprise Surveys, Ibrahim Adamu, Ismaila S. Sabi, Sani Bawa Jun 2014

Measuring Respondent Burden In Nigeria: A Case Study Of Central Bank Of Nigeria Enterprise Surveys, Ibrahim Adamu, Ismaila S. Sabi, Sani Bawa

CBN Journal of Applied Statistics (JAS)

This paper uses diffusion indices, percentages and reported time spent to measure the respondent burden in survey of foreign assets and liabilities (SOFAL) and business expectations survey (BES). The results show that respondents found it easy but time consuming to complete the SOFAL questionnaire with an average of 24 hours spent in collecting information and over 2 hours to fill the questionnaire. In contrast, respondents found it much easier and quicker to complete the BES questionnaire, spending an average of 47 minutes to collect relevant information from their records and another 36 minutes to complete the questionnaire. The paper identified …


Foreign Trade-Economic Growth Nexus: Evidence From Nigeria, Nosakhare L. Arodoye, Milton A. Iyoha Jun 2014

Foreign Trade-Economic Growth Nexus: Evidence From Nigeria, Nosakhare L. Arodoye, Milton A. Iyoha

CBN Journal of Applied Statistics (JAS)

This study examines the nexus between foreign trade and economic growth in Nigeria using quarterly time-series data for 1981Q1 through 2010Q4. In order to fully account for feedbacks, a vector autoregressive model is utilized. The results show that there is a stable, long- run relationship between foreign trade and economic growth. The variance decomposition results show that the predominant sources of Nigeria economic growth variation are due largely to “own shocks” and foreign trade innovations. The study therefore recommends adoption of trade expansion policies as a means of accelerating economic growth in Nigeria.


Developing Banking System Stability Index For Nigeria, Angela Sere-Ejembi, Ini S. Udom, Audu Salihu, Ngozi V. Atoi, Baba N. Yaaba Jun 2014

Developing Banking System Stability Index For Nigeria, Angela Sere-Ejembi, Ini S. Udom, Audu Salihu, Ngozi V. Atoi, Baba N. Yaaba

CBN Journal of Applied Statistics (JAS)

This study constructed a banking system stability index (BSSI) for Nigeria, using a combination of financial soundness indicators and macro-fundamentals. It applied statistical and Conference Board Methodology normalisation processes on Nigeria’s banking and macroeconomic data from 2007Q1 to 2012Q2. The resultant index traced fairly well the episodes of crisis in the system over the study period. Hence, the BSSI is capable of acting as an early warning mechanism of signaling fragility. It could, therefore, be used as a complimentary regulatory policy tool to detect potential threat to enable monetary authorities take timely pre-emptive policy measures to avert crisis.


Destination Sectors And Originating Economies Of Nigeria’S Private Foreign Assets And Liabilities In 2012, Sani I. Doguwa, Mohammed M, Tumala, Isaiah Olufemi Ajibola Jun 2014

Destination Sectors And Originating Economies Of Nigeria’S Private Foreign Assets And Liabilities In 2012, Sani I. Doguwa, Mohammed M, Tumala, Isaiah Olufemi Ajibola

CBN Journal of Applied Statistics (JAS)

The 2013 survey of foreign assets and liabilities of enterprises in Nigeria was conducted to determine destination sectors of foreign private capital flows and economies where such investments originate. The survey covered 649 large establishments in Nigeria with 87.4 per cent response rate. The cross border transactions/investments of the respondents during 2011 and 2012 indicate total foreign claims on the Nigerian economy as at end 2012 rising to N16, 790.78 billion from N13, 647.19 billion recorded in 2011. Of this total, 98.1per cent came in the form of direct investments, while portfolio investments and other capital flows accounted for 1.1 …