This study has examined the impact of International Development Association (IDA) on the Nigerian economy for the period 1986 to 2016. The study used unit root test to determine the stationary state of the variables using the Augmented Dickey-Fuller Test. It also employs the Granger causality procedure, Johansen Co-integration and Error Correction Model (ECM) statistical techniques to establish both the direction of causality, short-run and long run dynamic relationship between the dependent and independent variables. The findings indicate that official development assistance increases the rate of economic growth of Nigerian; there is a unidirectional causal relationship between economic growth and official development assistance, i.e. the changes in the official development assistance are caused by the changes in economic growth and again, there exists a long run equilibrium relationship between official development assistance and economic growth. The study submits that the use of foreign aid should be encouraged since it promotes growth. It is therefore recommended that Government should create an enabling environment needed for investment of this official development assistance, Measures should be mapped out to ensure that every investment using official development assistance should be on capital project that will have a long term benefit and the Nigerian government should put stringent measures/policies to ensure the assistances from these body is well utilized to positively enhance both human and economic growth of the country.

This paper examined the long run relationship between FDI inflows and oil exports in Nigeria which most previous studies have not fully explored in recent times. Data were collected from CBN Statistical Bulletin and UNCTAD investment report from 1990 to 2016, and various diagnostic tests such as Unit Roots and Johansen co-integration were conducted. Thereafter, Dynamic Ordinary Least Square (DOLS) and Granger Causality Test were adopted to address the objective of this study. It was established that a significant positive relationship exists between FDI inflows and oil exports in Nigeria. This shows that what drives foreign investors in Nigeria is crude oil which constitutes the major share of the nation`s exports. In the same vein, there is an existence of a unidirectional causality which runs from FDI inflows to oil exports in Nigeria. This further shows that FDI inflows motivate oil exports in the country. Due to the significant findings that emerged from this study, it could be recommended that when attraction of FDI inflows are the target of the policy makers in Nigeria, improving variables like oil exports and inflation rate will induce the inflows of cross border investment accordingly in the long run. Also, the Nigerian government should be committed to effective exchange rate management which is sensitive to FDI inflows in the country.

In light of faltering sustainability in growth and development in Nigeria, this study evaluates the Micro Finance Banks Sectoral influence on the development of the Nigerian Economy over the period of 1992 to 2017, utilizing secondary data culled from the Central bank of Nigeria Statistical Bulletin and the World Bank. The study employed the use of Stationarity, Multiple Regression, Johansen’s Co-integration and Error Correction estimates. While the Co-integration results indicated significant long run relationship among the study variables, the Multiple Regression and Vector Error Correction estimates both point to Apportioned Microcredit to mining/quarrying, real estate/construction and transport/general commerce sectors as the sectoral microcredit that significantly influence Nigeria’s human development index both in the short and long terms respectively. Only Apportioned Microcredit to the mining/quarrying, real estate/construction and transport/general commerce sectors are valuable in predicting variations in economic development as captured by Human Development Index. In light of the above, it was thus recommended that other sectoral activities should be revamped according to their level of insignificance as more efforts should be devoted to the Agricultural sector, manufacturing sector and other sectors of the economy and there should be incentive to sensitize the populace about microfinancing which would bolster deposit based and help disbursement in the right direction, promotion of economic, political and social stability amongst others