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Search Results: 1 - 10 of 472 matches for " Olorunfemi Sola "
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Money Supply and Inflation in Nigeria: Implications for National Development  [PDF]
Olorunfemi Sola, Adeleke Peter
Modern Economy (ME) , 2013, DOI: 10.4236/me.2013.43018
Abstract:

The study examines money supply and inflation rate in Nigeria. Secondary data that ranged between 1970-2008 were sourced from the CBN Statistical Bulletin. The study used Vector Auto Regressive (VAR) model. The stationary properties of the model were also explored. The results revealed that money supply and exchange rate were stationary at the level while oil revenue and interest rate were stationary at the first difference. Results from the causality test indicate that there exists a unidirectional causality between money supply and inflation rate as well as interest rate and inflation rate. The causality test runs from money supply to inflation, from the interest rate to inflation and from interest rate to money supply. The paper concludes that government should use the level of inflation as an operational guide in measuring the effectiveness of its monetary policy.

Time Series Analysis of Export and Economic Growth in the Ecowas Countries
Sola Olorunfemi,Olorunsola E. Olowofeso
The Social Sciences , 2013,
Abstract: This study looked at the impact of export on economic growth in the countries that form the West Africa Monetary Zone (WAMZ) of the ECOWAS countries. The work adopts unit root, cointegration and error correction approaches which are suitable for modeling export and growth in a non-stationary environment. The value of the coefficient of aggregate export for all the countries is low. However, the results indicate that export contributed to growth in the WAMZ countries. Therefore, an improvement in export is advocated to put the nation on the right track of development. The positive and significant coefficient of aggregate export in all the four countries confirms the results from the statistical data that export is the engine of growth in the ECOWAS countries. The study suggested that more accurate export drive be put in place and for import to be redirected.
Sample Selection Analysis of Household Food Consumption in Southwestern Nigeria
Sola Olorunfemi,Igbekele A. Ajibefun
Pakistan Journal of Social Sciences , 2012,
Abstract: The objective of the study is to analyze food consumption pattern in Southwestern Nigeria. Data collected from 300 heads of household through a multi-stage random sampling technique were analyzed. Sample selection models that allow to take into account and correct the possible bias due to zero consumption were used. Also various single equation models were applied. Demand function was estimated by Ordinary Least Squares (OLS); Heckman two-steps sample selection estimator and the maximum likelihood estimator. Result shows that the t statistics test on the sample selection coefficient indicates absence of sample selection bias. It is found out that the mean percentage expenditure share for carbohydrate (rice, yam and gari) foodstuffs in the three states was 51.7% while 28.6% was spent on proteinous foodstuff. The expenditure elasticities results indicate that gari and rice are normal goods in the region. Result shows that rice and gari are strong substitute. Also that beans is a substitute for rice and plantain.
Stationarity Analysis of the Impact of Monetary Policy on the Economic Performance in Nigeria
Sola Olorunfemi,Faloye Olaleye Dotun
Pakistan Journal of Social Sciences , 2012,
Abstract: The study looked at the impact of monetary policy on the economic performance in Nigeria. The study made use of unit root and cointegration test so as to correct the mistake of most previous studies that were based on spurious regression. The study found out that for the periods covered in the study. There was negative relationship between interest rate and GDP while there was positive relationship between inflation rate and interest rate. Effort should therefore be made by government to reduce the interest rate charge by bank, which will thereafter affect the level of overall growth of the economy.
Genotoxicity Assessment of Contaminated Drinking Water Sources in a Rural Community in Edo State of Nigeria  [PDF]
D. I. Olorunfemi, O. P. Olorunfemi, I. E. Agbozu
Journal of Geoscience and Environment Protection (GEP) , 2014, DOI: 10.4236/gep.2014.22009
Abstract: In most rural settlements in Nigeria, provision of potable water for drinking and domestic purposes is a big challenge; therefore analysis of drinking water is of great importance as contaminated water jeopardizes both the physical and social health of all people. Water samples were obtained during the dry and wet seasons from a borehole and a man-made lake constructed through self-help effort in Obazuwa community in Ovia North East Local Government Area of Edo State, Nigeria. They were analyzed for physicochemical parameters and subjected to cyto-genotoxic evaluation using the Allium cepa assay. Results of the physicochemical analysis showed that most of the parameters (pH, chromium, copper, chlorides, nickel, iron, zinc, cadmium, lead and manganese) of the lake water in both seasons exceeded World Health Organisation (WHO) permissible limits. Total heterotrophic bacteria and E. coli were present with dry season water samples having higher amounts. Compared to the control, the mitotic index decreased significantly (p < 0.05) in the water samples and were characterized by a number of chromosomal aberrations notably bridges, fragments, sticky chromosomes, disoriented chromosomes, and micronuclei in significant amounts and these were more pronounced in water samples obtained during the dry season. The findings in this study are of public health relevance as access to safe water is a fundamental human need and therefore, a basic human right.
Willingness to Pay for Improved Environmental Quality among Residents Living in Close Proximity to Landfills in Lagos Metropolis, Nigeria
FB Olorunfemi
African Research Review , 2009,
Abstract: Landfills constitute a significant risk to human health and the environment. Even though the location of landfills in urban areas is beneficial in that they provide the most efficient and safe means of disposal of wastes generated, the perceived environmental costs, health-related hazards, social and economic impacts associated with landfills are often confined to the immediate zone of influence of landfills. This paper examines the willingness to pay for improved environmental quality among people living close to the two functional landfills (Olushosun and Abule Egba) in Lagos metropolis. A structured questionnaire was the main instrument used in the collection of data for the study. The sample size consists of 930 heads of households in the two locations used for the study (488 in Olushosun and 442 in Abule-Egba). Three important facts emerged from this study. First, the presence of the landfills and its associated environmental impacts is an important factor contributing to respondents’ willingness to pay for any environmental improvement in their neighbourhood. Second, the proportion of respondents willing to pay decreased consistently as distance increases away from the landfills in the two locations. Lastly, respondents are generally not willing to pay high amount for environmental amelioration.
Living with Waste: Major Sources of Worries and Concerns about Landfills in Lagos Metropolis, Nigeria
FB Olorunfemi
Ethiopian Journal of Environmental Studies and Management , 2009,
Abstract: There is widespread public perception that landfills represent unacceptable risks to human health and environment. However, while there is an extensive literature on the impact of landfills in the developed countries, only few exist in African countries. Furthermore, few empirical studies have attempted to ascertain the individual and community level impacts around existing facilities. This is one part of a twin paper that addresses the individual and community level impacts around landfills in Lagos metropolis. While this paper examines the major sources of worries and concerns about landfills in Lagos metropolis, the second paper examines the coping mechanisms in response to impacts experienced among residents living in close proximity to the landfills. A structured questionnaire was the main instrument used in the collection of data for the study. The sample size consists of 930 heads of households in the two locations used for the study (488 in Olushosun and 442 in Abule-Egba). It focused on the nature of geographical variations and intensities of the impacts with distance from the sites. The outcome of the study shows that landfills within Lagos metropolis are uncontrolled and do not conform to international standards of landfill operations. The results reveal that the NIMBY syndrome clearly manifests in that respondents consistently placed high premium on negative externalities of landfills. Specifically, odour, smoke (from burning of wastes), noise, flies and rodents, aesthetics and water pollution were the most frequently mentioned environmental problems, while psychological disturbance, nausea, and diarrhoea were the most frequently mentioned health problems.
Willingness to Pay For Improved Environmental Quality among Residents Living in Close Proximity to Landfills in Lagos Metropolis, Nigeria
FB Olorunfemi
Ethiopian Journal of Environmental Studies and Management , 2009,
Abstract: Landfills constitute a significant risk to human health and the environment. Even though the location of landfills in urban areas is beneficial in that they provide the most efficient and safe means of disposal of wastes generated, the perceived environmental costs, health-related hazards, social and economic impacts associated with landfills are often confined to the immediate zone of influence of landfills. This paper examines the willingness to pay for improved environmental quality among people living close to the two functional landfills (Olushosun and Abule Egba) in Lagos metropolis. A structured questionnaire was the main instrument used in the collection of data for the study. The sample size consists of 930 heads of households in the two locations used for the study (488 in Olushosun and 442 in Abule-Egba). Three important facts emerged from this study. First, the presence of the landfills and its associated environmental impacts is an important factor contributing to respondents’ willingness to pay for any environmental improvement in their neighbourhood. Second, the proportion of respondents willing to pay decreased consistently as distance increases away from the landfills in the two locations. Lastly, respondents are generally not willing to pay high amount for environmental amelioration.
Research and Development Potentials in Biofuel Production in Nigeria
SO Akande, FB Olorunfemi
African Research Review , 2009,
Abstract: Nigeria is at present suffering from the worst energy crisis in her 48 years of existence as an independent nation. Even though there is a global crisis in the international oil market, Nigeria seems to suffer disproportionately from the negative impacts when compared to other oil producing nations. Although, Nigeria’s natural resource wealth (including renewable energy potentials) has been well documented and acknowledged, the contribution of renewable energy sources to the total national energy supply and demand is currently very low or negligible. There is a clear link between access to energy services and poverty reduction and hence development. Apart from its contribution to poverty reduction, it is the very diversity of biofuel that provides potential of a win-win development path for the environment, social and economic development, and energy security. It is in the light of this that this paper examines the research and development potentials in ethanol and biofuel in Nigeria.
Effect of Cassava Processing Effluents on Antioxidant Enzyme Activities in Allium Cepa L
DI Olorunfemi, O Lodidi
Biokemistri , 2011,
Abstract: The underlying principle of the biomarker approach is to analyse the physiological and/or biochemical response of an organism exposed to an environmental pollutant. Onion bulbs were exposed directly in 0%, 0.2%, 0.4%, 0.8% 1%, 2%, 3%, 4% and 5% concentrations (v/v) to each effluent of three popular Nigerian cassava meals: garri, lafun and akpu for 96 hours. The root growth of the onion bulb and superoxide dismutase (SOD), and catalase (CAT), activities were measured. At 96 h, the root tips showed concentration-dependent growth retardation in all the effluents with EC50 values of 1.5%, 2.5% and 3.5% for garri, lafun and akpu effluents respectively while total phytotoxic effects was induced at higher effluent concentration. The physicochemical analyses showed that the effluents were highly acidic and contained significant (p<0.05) amounts of cyanide and heavy metals compared to the control. The effluents induced increased malondialdehyde (MDA) levels and accelerated SOD activity at low concentrations but decreased after attaining maximum activity in garri effluent at 1%. Catalase was inconsistent; however, a drastic decrease in activity was recorded at the same effluent concentration. Lafun and akpu induced similar increases in antioxidant enzymic activity up till 2% effluent concentration after which steep decline set in.
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