This paper examined the effect of power supply and the performances of Small and Medium Scale Enterprises (SMEs). In doing this, the paper used durations of public power supply, bills paid for public power and cost paid for private power supply as measures of power supply on the performances index of the SMEs in Port Harcourt. The performance indexes are employed in the models as the dependent variables while the power supply indexes are the explanatory variables. The data were sourced primarily through a well-structured questionnaire and the samples determined by the Cochran sampling techniques. The data were analyzed with the Qualitative Respond Model. It was revealed that a lower duration of public power supply significantly reduces the profitability, productivity and revenue, as well as the storage of products of the SMSEs, examined. Hence, the study recommended among others that there is a need to allocate more electric power to the industrial area of Rivers state- Port Harcourt, especially in the day light to encourage productivity, profitability and employment generation in the state.

This research analyzed the insurance industry and economic growth in Nigeria between 1980 and 2015. Secondary data ranging from real gross domestic product, the premium of the insurance business, claim expenditure of insurance industry and inflation rate were utilized and sourced from Central Bank of Nigeria (CBN). The Ordinary Least Squares (OLS) multiple regression techniques, Descriptive statistics, Augmented Dickey-Fuller (ADF) test of stationarity and ARDL Bound Test Co-Integration were adopted for the model in the Study. The findings revealed that the premium of the insurance industry (PMI) impacts negatively on economic growth both in the extended and short run period. The claim expenditure of the insurance industry (CEX) revealed a progressive relationship with economic growth in the long run and a negative relation with growth in the short run. We therefore conclude following the Keynesian theory of aggregate demand which states that, ‘’if we will have to wait till the long run, we will all be dead’’, that insurance industry in Nigeria has not impacted positively on economic growth of Nigeria within the period under review and its operations and investment have not been prominent and contributory to the growth and development of Nigeria. Based on these outcomes, we recommend amongst others, that more investment ought to be made towards the insurance industry in Nigeria especially in terms of proper policy formulation by the government that would channel funds and encourage competition among the players in the industry and invariably contribute to the growth of the economy.

This paper investigated this disparity in the literature using Nigeria data from 1980 to 2016. In doing this, energy consumption was disaggregated, and their impacts on economic growth investigated using a modified Ordinary Least Square technique which allows for time gaps in the model. It was observed that only renewable energy impacted on economic growth in the long-run whereas non-renewable energy component impacted on economic growth in the short-run. Therefore, the study sees the impact of energy consumption on economic growth to be indistinct in Nigeria within the period under review. This further buttresses the need for improvement in electricity production and distribution in Nigeria. Given the importance of energy consumption on productivity, the study, therefore, suggests policies/measures that will bring about increasing the supply or improvement of energy production in the country.

There is a pool of techniques and methods in addressing dynamics behaviors in higher frequency data, prominent among them is the ARCH/GARCH techniques. In this paper, the various types and assumptions of the ARCH/GARCH models were tried in examining the dynamism of exchange rate and international crude oil prices in Nigeria. And it was observed that the Nigerian foreign exchange rates behaviors did not conform with the assumptions of the ARCH/GARCH models, hence this paper adopted Lag Variables Autoregressive (LVAR) techniques originally developed by Agung and Heij multiplier to examine the dynamic response of the Nigerian foreign exchange rates to crude oil prices. The Heij coefficient was used to calculate the dynamic multipliers while the Engel & Granger two-step technique was used for cointegration analysis.  The results revealed an insignificant dynamic long term response of exchange rate to crude oil prices within the periods under review. The coefficient of dynamism was insignificantly in most cases of the sub-periods. The paper equally revealed that the significance of the dynamic multipliers depends greatly on external information about both market indicators which are two-way interactions. Thus, the paper recommends periodic intervention in the foreign exchange market by the monetary authorities to stabilize the market against any shocks in the international crude oil market, since crude oil is the main source of foreign exchange in Nigeria.