An Empirical Evaluation of the Effect of Foreign Investment Inflows on Economic Growth in Nigeria (Published)
This study examined the effect of foreign investment inflows on economic growth of Nigeria, using secondary data for the period 2001 to 2018. The study adopted gross domestic product as the indicator of economic growth and the dependent variable, while foreign direct investment, foreign portfolio investment and exchange rate were used as explanatory variables. The data on the study variables covering the period 2001 to 2018 were collected from the CBN Statistical Bulletin. The study employed descriptive statistics and multiple regression analysis technique based on the E-view computer software for analyzing data. The results of analysis revealed that foreign direct investment, foreign portfolio investment and exchange rate had significant positive influence on gross domestic product. Based on the results of the empirical analysis, the study concluded that foreign investment inflows have made the desired positive impact on the growth of the Nigerian economy. However, a lot still need to be done to create conducive investment climate to attract sufficient amount of foreign investors into the productive sectors of the Nigerian economy. The study recommended that the regulatory authorities should formulate policies and create the enabling environment to attract foreign investments into Nigeria.
In this paper, the concept of Linear Programming (LP) was applied to Multigrow Insurance Company in Ghana which had a portfolio problem. The company had obtained GH₵ 200000 cash but had a difficulty in determining how much to invest in each of five investment areas in order to maximize return. Based on the data collected, the problem was formulated as a Linear Programming Problem and solved using Management Scientist Version 5 Software. Optimal portfolio mix was obtained for the Insurance Company. Finally, the total optimal return on the investments of the company was found to be GH₵ 15980. It is strongly recommended that the Company should adhere to the proposed optimal portfolio mix and also employ at least one operations researcher to assist the Company in its activities.