The study of FDI spillover effects on domestic firms in developing countries has attracted the attention of many researchers over the past few decades. This study examines the role of country of origin of foreign investors in influencing FDI spillovers in the manufacturing sector in Nigeria using survey data from the World Bank Enterprise Survey published in 2018. Our study differs from previous FDI studies in the sense that existing studies in Nigeria did not pay attention to the country of origin of foreign investors in the analysis of FDI spillover effects. We follow the methodology of Javorcik (2004) in constructing the FDI spillover variables and use the augmented Cobb-Douglas production function to estimate the spillover effects of FDI on productivity of local firms where we incorporate investors' origin. Pooled OLS is used for the estimation of the parameters. The results of the regression analysis show that investors that originated from Europe have positive and statistically significant impact on productivity and also generate more technology spillovers compared to investors from Asia, Middle East and Africa. It is recommended that policymakers consider the source country of foreign investors when formulating FDI policies and further micro level studies are needed for more understanding how FDI spillovers affect the performance of local firms in developing countries especially in Africa.

This study examines the impact of FDI spillovers on productivity of firms in the manufacturing sector in Nigeria. While there are numerous studies focusing on the direct impact of FDI in Nigeria, only very few studies have investigated the spillover effects of FDI on productivity. The study uses firm level panel survey data obtained from the World Bank's Enterprise Survey. The techniques of analysis used are pooled OLS, random effects and generalised method of moments (GMM). Our results show that there is presence of significant FDI spillover effects in the manufacturing sector in Nigeria. We find positive and significant impact of FDI spillovers through the horizontal and forward channels while backward FDI spillover has a negative and significant impact on productivity. While the result of horizontal and forward spillovers can be attributed to the competitiveness of local firms and quality of inputs from foreign owned suppliers respectively, the negative backward spillover may be due to poor transportation networks and low absorptive capacity of local suppliers. We recommend that for domestic firms to benefit from their foreign customers in the downstream sector, there must be improved infrastructure especially transportation networks and local firms have to upgrade their capacity in terms of education.

This study investigates the impact of Dutch disease on agriculture sector in Nigeria for the period of 35 years. It examines the causal as well as long run relationship between Dutch disease and agriculture sector in Nigeria over the study period. It is empirically evident that increase in only a single growing sector (oil sector) adversely affects the growth and development of other sectors in an economy. The study uses econometric regression tool to estimate the multivariate model, correlation analysis, OLS, Unit root test, Johansen co-integration test, vector error correction mechanism as well as granger causality have been used in the analysis of data. The result reveals that Crude oil prices (COP) negatively affects the Agricultural output (AGO). All the variables used except inflation rate (INF) are found to have the same order of integration that is, I(1) and also a long-run co-integration relationship among Agricultural output (AGO), Crude oil prices (COP), Real Gross Domestic Product (RGDP), Inflation rate (INF) and Exchange rate (EXCR) was found to exist. The study recommends that proceeds from oil should be used optimally to develop the agricultural sector in order to reduce dependency on oil sector and also to boost the agricultural sector.

This study investigated the export-led growth hypothesis in Nigeria. The study examined the long-run and short-run equilibrium relationships between exports; imports and economic growth over the study period. The study used Johansen co-integration technique, granger causality, and vector error correction mechanism in the analysis of data. The variables used were found to have the same order of integration and the empirical evidence strongly suggested the existence of long-run co-integration relationship among import, export and economic growth in Nigeria. The study also found causality running from export to import and from economic growth to import. However, there was no empirical evidence in support of the export-led growth hypothesis. The study recommended that Nigerian export base should be expanded by given more attention to non-oil sector of the economy to augment the oil sector.