FACULTY OF THE SOCIAL SCIENCES
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Item Oil Price Shocks and Economic Growth in Nigeria: Are Thresholds important?(John Wiley & Sons Inc., 2011) Adeniyi, O. A.; Omisakin, O. A.; Oyinlola, M. A.The impact of oil price shocks on the economy has occupied the attention of researchers for almost four decades. Majority of studies support the existence of a negative association, while some recent evidences seem to have popularised the view that outcomes are the artefacts of misspecified functional forms. This study, although similar in spirit to this popular opinion, is, however, distinct in a number of ways. Firstly, unlike most Nigeria-specific studies, this paper explores alternative measures of oil price shocks, which have been developed and used in the literature with a view to ascertaining the extent to which conclusions about the oil price-growth association depend on the definition of shocks adopted. More importantly, this, to the best of our knowledge, is a pioneer attempt at introducing threshold effects into the linkage between oil price shocks and output growth in Nigeria. The relatively recent regime-dependent multivariate threshold autoregressive model, together with the characteristic impulse response functions and forecast error variance decomposition, is adopted in this study. Using quarterly data spanning 1985–2008, a non-linear model of oil price shocks and economic growth is estimated. Our main results indicate that oil price shocks do not account for a significant proportion of Observed movements in macroeconomic aggregates. This pattern persists despite the introduction of threshold effects. This implied the enclave nature of Nigeria’s oil sector with weak linkages. Therefore, the need to spend oil revenue productively is imperative if favourable effect on real output growth is envisaged.Item Non-Linear Relation Between External Debt and Economic Growth in Nigeria: Does the Investment Channel Matter?(Faculty of Economics, University of Tehran., 2021) Adekunle, W.; Adeniyi, O. A.; Orekoya, S. O.Large external debt stock has been identified as one of the most important factors which have restricted the development of many poor countries. The consensus in the literature remains that external debt promotes growth to the extent that a country does not exceed its debt carrying capacity. Otherwise, additional debt accumulation would serve as a tax on future investment returns capable of creating disincentive to invest in the highly indebted countries. In the light of these arguments, this study investigates the possible role of domestic investment in the non-linear relation between external debt and economic growth in Nigeria over the period from 1981 to 2015. Based on the results of threshold regression analysis employed in this study, the overall findings showed that the impact of external debt on economic growth is sensitive to both measures of external debt used, and whether or not the role of domestic investment is accounted for. Specifically, this study confirmed the existence of the debt Laffer curve associated with the debt overhang theory arising from excessive external debt accumulation. Similarly, empirical support was obtained for the crowding-out effect of excessive external debt servicing. Also, accounting for the role of domestic investment in the non-linear relation between external debt and economic growth reduces the optimal debt carrying capacity of the country. It is therefore suggested that the Nigerian government internalizes a maximum ceiling of 6.81% as the share of external debt stock in gross national income (GNI) so as to enjoy the resulting growth benefits. External debt financing sources that are free of interest charge could also be explored so as to circumvent the burden imposed by excessive external debt servicing.Item Foreign Direct Investment, Economic Growth and Financial Sector Development in Small Open Developing Economies(Elsevier B. V., 2012) Adeniyi, O. A.; Omisakin, O.; Egwaikhide, F. O.; Oyinlola, M. A.The present paper examines the causal linkage between foreign direct investment (FDI) and economic growth - in Cote d'Ivoire, Gambia, Ghana, Nigeria and Sierra Leone - with financial development accounted for over the period 1970-2005 within a trivariate framework which applies Granger causality tests in a vector error correction (VEC) setting. Three alternative measures of financial sector development - total liquid liabilities, total banking sector credit and credit to the private sector - were employed to capture different ramifications of financial intermediation. Our results support the view that the extent of financial sophistication matters for the benefits of foreign direct investment to register on economic growth in Ghana, Gambia and Sierra Leone depending on the financial indicator used. Nigeria, on the other hand, displays no evidence of any short- or long-run causal flow from FDI to growth with financial deepening accompanying. In sum, therefore, what should be of utmost urgency is concerted efforts in most of these countries, which have typically been in the throes of economic reforms, to upgrade their financial structure to better position them to reap the desirable growth promoting effects of FDI flows.Item Oil Price Shocks and Economic Growth in Nigeria: Are Thresholds important?(John Wiley & Sons Inc., 2011) Adeniyi, O. A.; Omisakin, O. A.; Oyinlola, M. A.The impact of oil price shocks on the economy has occupied the attention of researchers for almost four decades. Majority of studies support the existence of a negative association, while some recent evidences seem to have popularised the view that outcomes are the artefacts of misspecified functional forms. This study, although similar in spirit to this popular opinion, is, however, distinct in a number of ways. Firstly, unlike most Nigeria-specific studies, this paper explores alternative measures of oil price shocks, which have been developed and used in the literature with a view to ascertaining the extent to which conclusions about the oil price-growth association depend on the definition of shocks adopted. More importantly, this, to the best of our knowledge, is a pioneer attempt at introducing threshold effects into the linkage between oil price shocks and output growth in Nigeria. The relatively recent regime-dependent multivariate threshold autoregressive model, together with the characteristic impulse response functions and forecast error variance decomposition, is adopted in this study. Using quarterly data spanning 1985–2008, a non-linear model of oil price shocks and economic growth is estimated. Our main results indicate that oil price shocks do not account for a significant proportion of Observed movements in macroeconomic aggregates. This pattern persists despite the introduction of threshold effects. This implied the enclave nature of Nigeria’s oil sector with weak linkages. Therefore, the need to spend oil revenue productively is imperative if favourable effect on real output growth is envisaged.Item Oil Price Shocks and Economic Growth in Nigeria: Are Thresholds important?(John Wiley & Sons Inc., 2011) Adeniyi, O. A.; Omisakin, O. A.; Oyinlola, M. A.The impact of oil price shocks on the economy has occupied the attention of researchers for almost four decades. Majority of studies support the existence of a negative association, while some recent evidences seem to have popularised the view that outcomes are the artefacts of misspecified functional forms. This study, although similar in spirit to this popular opinion, is, however, distinct in a number of ways. Firstly, unlike most Nigeria-specific studies, this paper explores alternative measures of oil price shocks, which have been developed and used in the literature with a view to ascertaining the extent to which conclusions about the oil price-growth association depend on the definition of shocks adopted. More importantly, this, to the best of our knowledge, is a pioneer attempt at introducing threshold effects into the linkage between oil price shocks and output growth in Nigeria. The relatively recent regime-dependent multivariate threshold autoregressive model, together with the characteristic impulse response functions and forecast error variance decomposition, is adopted in this study. Using quarterly data spanning 1985–2008, a non-linear model of oil price shocks and economic growth is estimated. Our main results indicate that oil price shocks do not account for a significant proportion of Observed movements in macroeconomic aggregates. This pattern persists despite the introduction of threshold effects. This implied the enclave nature of Nigeria’s oil sector with weak linkages. Therefore, the need to spend oil revenue productively is imperative if favourable effect on real output growth is envisaged.Item Oil Price Shocks and Economic Growth in Nigeria: Are Thresholds important?(John Wiley & Sons Inc, 2011) Adeniyi, O. A.; Omisakin, O. A.; Oyinlola, M. A.The impact of oil price shocks on the economy has occupied the attention of researchers for almost four decades. Majority of studies support the existence of a negative association, while some recent evidences seem to have popularised the view that outcomes are the artefacts of misspecified functional forms. This study, although similar in spirit to this popular opinion, is, however, distinct in a number of ways. Firstly, unlike most Nigeria-specific studies, this paper explores alternative measures of oil price shocks, which have been developed and used in the literature with a view to ascertaining the extent to which conclusions about the oil price-growth association depend on the definition of shocks adopted. More importantly, this, to the best of our knowledge, is a pioneer attempt at introducing threshold effects into the linkage between oil price shocks and output growth in Nigeria. The relatively recent regime-dependent multivariate threshold autoregressive model, together with the characteristic impulse response functions and forecast error variance decomposition, is adopted in this study. Using quarterly data spanning 1985–2008, a non-linear model of oil price shocks and economic growth is estimated. Our main results indicate that oil price shocks do not account for a significant proportion of Observed movements in macroeconomic aggregates. This pattern persists despite the introduction of threshold effects. This implied the enclave nature of Nigeria’s oil sector with weak linkages. Therefore, the need to spend oil revenue productively is imperative if favourable effect on real output growth is envisaged.Item Characteristics and behaviour of African factor markets and market institutions and their consequences for growth(Center for International Development, Harvard University, 1999-12) Adenikinju, A. F.; Oyeranti, O.This paper provides a detailed characterisation of the structure and behaviour of African factor markets and the institutions that impact on their operations. It shows that the African factor markets are imperfect and inefficient, thus constraining economic growth. The paper posits that for the current reform programmes to succeed, policy that enhances the efficiency and competitiveness of the African factor markets must be put in place.Item Savings trend and behaviour in Nigeria(West African Monetary Institute, 2004) Akpokodje, G.; Egwaikhide, F. O.; |Oyeranti, O. A.; Ayodele, O. S.