1aAfrica has received considerable amounts of external aid over the last two decades without significant improvements in socio-economic conditions on the continent. This study, therefore, examines the effects of foreign aid on growth in Africa, and how institutional quality can moderate these effects. The study used the system generalized method of moments estimation technique and a panel of forty-two African countries over the period 2010-2018. Interestingly, the study established that even though foreign aid impacts negatively on growth in Africa, improving the quality of institutions on the continent can reverse this negative effect. In fact, the study computed a threshold value of institutional quality beyond which foreign aid would be a blessing to Africa. This implies that for foreign aid to contribute meaningfully to growth in Africa, the quality of institutions should improve beyond this threshold. Unfortunately, the average level of institutional quality in Africa is presently below this threshold. The study concluded that policymakers in Africa should take urgent steps to strengthen the quality of institutions on the continent as a means of exploiting the continent's huge foreign aid to drive growth and reduce the excruciating effects of poverty plaguing more than half of its population.

The role of the manufacturing sector in economic growth and development cannot be overemphasized. Economic theory enthuses that economic growth can be further realized when the manufacturing sector makes steady positive contribution in the overall GDP growth rate. In an attempt to harp on this, this study investigates the impact of foreign direct investment (FDI) on manufacturing sector output growth in Nigeria for the period 1970-2016 using OLS and Granger causality tests analysis. Due to various constraints including paucity of funds capital, the positive contribution of the manufacturing sector has not been encouraging. So the need for foreign capital inflow may be a welcome development. Thus, the study estimates a logarithmic model of the impact of FDI inflow on manufacturing output growth in Nigeria in order to assess its possible contribution to economic diversification of the Nigerian economy which has been heavily dependent on the energy sector. The findings of this study reveal that there is a longrun relationship between FDI and manufacturing sector output growth (MSOG) though statistically insignificant. Granger causality result shows that there is a unidirectional causality from FDI and MSOG. The study recommends that the variables; electricity generation, exchange rate, private sector credit and political stability which show significant relationships to MSOG should be given priority by the government policy makers to diversify the economy through the manufacturing sector.

Biotic and abiotic carbon sequestration currently seems to be the only viable tools at the disposal of mankind for mitigating greenhouse gas (GHG) emissions and thus a remedy for tackling global warming challenges. This study accesses the global carbon capture and storage (CCS) programme: the level of success in its implementation and its impact using panel data from eight countries, the majority of which have begun one or more operational CCS facilities. To achieve this objective, fifteen years period time series data was sourced for the eight selected countries based on data availability, namely the United States (US), the United Kingdom (UK), Canada, China, Australia, Norway, South Africa, and Nigeria; ranging from 1990 to 2015. The panel ARDL results show that the explanatory variables, global industrial production (LIP), Electricity production (LEP), Agricultural production (LAP), transportation (LTR), and energy supply (LES) have a long-run relationship with the dependent variable (LGHG emissions). While the short-run results show that none of the variables have a significant contribution to LGHG emissions. In the long-run results, LIP and LTR significantly contribute to the reduction of LGHG courtesy of the CCS programme while LEP, LAP, and LES contribute to a rise in the LGHG emission. The cross-sectional results show that all the variables have significant impacts on LGHG in all the sampled countries except Australia. Suggesting that, the CCS programme is viable for mitigating global warming and climate change and therefore should be considered by the various countries of the world.

The study investigates external debt exposure to exchange rate risk in Nigeria. The Secondary data used were sourced from World Bank Development Indicators for all the variables from the period 1981 to 2019. By employing the Augmented Dickey-Fuller Unit root test and OLS estimation technique, the study found that external debt service payment (EXTDSP), total payment on external debt (TPEXTD), and trade openness (TROP) is significant. While External debt service payment (EXTDSP) and trade openness (TROP) is negatively impacting the exchange rate (EXCHR). TPEXTD has a positive significant impact on EXCHR at a 5% level of significance. The rest of the explanatory variables: external debt stock (EXTDS), gross domestic product growth rate (GDPGR), and real interest rate (RINTR) are all positive and insignificant at all levels of significance. The study, therefore, recommends that the government should go for concessional loans which has low-interest rate and are long-term in nature and as well encourage international trade with other countries of the world.

Foreign capital inflows are major forms of resource transfer from the developed to the developing countries where they are usually found to be more productive and the result can be positive or negative. Hence, the work set out to empirically investigate the effect of foreign capital inflows and some selected macroeconomic variables on economic growth in Nigeria. The study applied the autoregressive distributed lag (ARDL) model on time series data for the period, 1981-2020. The findings from the paper indicate that foreign capital inflows: FDI, Gross fixed capital formation and personal remittances have significant impact on real gross domestic product in Nigeria. Consequently, the study recommends that government should continue to fine tune bilateral trade and investment agreements with other nations of the world.