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Search Results: 1 - 10 of 1689 matches for " Isaac Tweneboah-Koduah "
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Entrepreneurship Determinants of Artisans/Craftsmen in Kumasi Metropolis, Ghana  [PDF]
Isaac Tweneboah-Koduah, Charles Adusei
American Journal of Industrial and Business Management (AJIBM) , 2016, DOI: 10.4236/ajibm.2016.62016
Abstract: A review of entrepreneurship literature suggests that entrepreneurial activities are the most important drivers for economic growth. The study sought to determine the predictors that bring about entrepreneurship for artisans and craftsmen in Kumasi Metropolis. Primary data were gathered from artisans and craftsmen in the market and firms through questionnaires in a criteria-based random survey. The findings of the study revealed the determinant factors of individual, firm and the environmental issues as predictors for the sampled respondents. The determinants were also ranked in relative importance and highlighted the challenges faced by the artisans and craftsmen in Kumasi Metropolis. The study recommends that necessary attention should be given to high ranked determinants so as to increase entrepreneurial processes and activities to alleviate poverty from Kumasi Metropolis through stimulation of economic growth, employment generation, and organizations empowerment.
After-Sales Service and Customer Satisfaction in the Automobile Industry in an Emerging Economy  [PDF]
Charles Adusei, Isaac Tweneboah-Koduah
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105167
Abstract:
Purpose: The study examined the role of after-sales services on customer satisfaction using CFAO Motors as a case study. Methodology: A mixed ap-proach was used in the data collection through questionnaire administration and interviews. The analysis made used of Kano’s Model and Kendall’s Coefficient of Concordance. Results: The result indicated that maintenance (M) = 43 and inspection (O) = 41 were the highest scores of the major categories under customer requirement on “must-be” requirement and “one-dimensional” requirement respectively. The customers ranked solving problems through maintenance, accuracy of documentation and competency of service technicians as the top three priorities of their assessment on after-sales services. The service technicians revealed that competition coupled with insufficient hands on the job as a major challenge to after-sales services while the Workshop Manager indicated that customers were reminded of their next servicing schedule through sticker which was placed in the car to show scheduled service time. Conclusion: The study concludes that CFAO Motor must be customer-centric organization through deployment of effective marketing strategies to build long term relationships with stakeholders to better its performance. Originality: This is the first time in the Ghanaian context where a mixed method and the application of the Kano Model have been used on automaker dealer after-sales services.
Exchange Rate Modelling in Ghana: Do the Purchasing Power Parity and Uncovered Interest Parity conditions hold jointly?
George Tweneboah
International Journal of Economics and Finance , 2010, DOI: 10.5539/ijef.v2n1p3
Abstract: We employ the cointegration and Vector Error Correction methodology to explore exchange rate modelling in Ghana by considering the interactions between the goods and capital asset markets using monthly data spanning from 1997:1 to 2007:12. The empirical evidence supports a long-run relationship between prices, interest rates, and exchange rates in which the signs are consistent with the joint validity of the unrestricted PPP and UIP conditions. Further likelihood ration tests based on the cointegration vector show that the strict forms of the PPP and UIP conditions between Ghana and the USA do not hold as stationary relations. The findings suggest that the interactions between the goods and capital asset markets matter for the conduct of monetary policy and exchange rate modelling in Ghana.
Savings-Growth Nexus in Ghana: Cointegration and Causal Relationship Analyses  [PDF]
Robert Becker Pickson, Koduah Dawud Enning, Anthony Siaw
Theoretical Economics Letters (TEL) , 2017, DOI: 10.4236/tel.2017.72012
Abstract: The wide range of controversies surrounding the direction of causality between savings and economic growth necessitated this study. The study was intended to investigate the relationship between gross domestic savings and economic growth in Ghana; with the specific objective of finding whether there exists a long run relationship between them, and it was also intended to ascertain the direction of causality between the two running actors in the study over the period of 1972 to 2013. The study employed Johansen cointegration test to reveal no long run relationship between gross domestic savings and economic growth in Ghana. This necessitated the usage of the VAR technique to estimate the short run relationships. The finding was that there exists a unidirectional line of causation running from gross domestic savings to economic growth in Ghana. It is strongly recommended therefore that the Bank of Ghana will use the monetary policy instruments to influence and advise the commercial banks on the need to peg the deposit rate relatively higher at least equal or little above the existing interest rate. This is because the deposit rate is the opportunity cost of money demand for other purposes.
Revisiting Domestic Savings and Economic Growth Analysis in Ghana  [PDF]
Anthony Siaw, Koduah Dawud Enning, Robert Becker Pickson
Theoretical Economics Letters (TEL) , 2017, DOI: 10.4236/tel.2017.75093
Abstract:
This study set out to ascertain the relationship between domestic savings and economic growth in the midst of antecedent variables with yearly data during the period of 1970-2013. Using Johansen cointegration test and vector error correction model, the study found that, in the long-run, consumer price index, trade openness, foreign direct investment, and domestic savings have positive significant impacts on economic growth. With respect to the shortrun estimates, the lags in domestic savings have negative but insignificant effects on economic growth. It is, therefore, incumbent on the government to uphold, guard, and sustain the political stability so jealously since it can create a conducive financial atmosphere necessary to mobilise savings in order to improve the growth rate of the Ghanaian economy. It is also recommended that the central bank pays a particular attention to rural savings mobilisation through the regulation of mobile banking by allowing the telecommunication companies to also pay interest to savers on their mobile deposits and establishment of banking financial institutions at least in each district in Ghana.
Geophagia clay soil as a source of mineral nutrients and toxicants
FA Tayie, G Koduah, SAP Mork
African Journal of Food, Agriculture, Nutrition and Development , 2013,
Abstract: Geophagia, which involves ingestion of non-food lithospheric substances, is the major form of pica in many African cultures. A common lithospheric pica substance ingested in the Cape Three Point region of West Africa, particularly Ghana and Togo, is a white loamy clay soil. This clay soil is usually ingested by women of reproductive age. Some of the reasons assigned to clay geophagia include appealing flavour, to alleviate nausea during pregnancy, and for absorption of toxins in the gastrointestinal tract. Some speculation indicates that geophagia may be an attempt to replenish mineral nutrients in undernourished persons. The study of the acid extractable mineral contents of this white clay soil was done to provide information on the mineral contents that could potentially be absorbed in the gastrointestinal tract. Results showed that the clay soil was very dry with mean moisture content of 0.19±0.01%. On dry weight basis, the geophagia clay soil contained (mg/100 g) aluminium, 1,239.6; iron, 962.9; lead, 2.4; magnesium, 64.3; and zinc, 54.6. The extractable mineral contents of this clay soil, on dry weight basis, were (mg/100 g): zinc, 1.40±0.05; iron, 14.19±0.13; magnesium, 23.83±0.31; and aluminium, 37.91±2.94. Compared to the total minerals contents of the clay soil, the acid extractable fractions represented 2.6% of zinc, 1.5% of iron, 36.4% of magnesium, and 3.2% of aluminium. Even though lead was not detected in the acid extracts, a small amount was detected in the dry clay soil. Arsenic was not detected in any clay sample or extracts. It was concluded that the main mineral nutrient potentially contributed by this clay pica substance was iron. The clay soil liberated a substantial amount of iron (14.2 mg/100g), which constituted 78.9% of the 18 mg/d iron RDA for women of reproductive age and 53.0% of the 27 mg/day iron RDA for pregnant women. The potentially undesirable effect of ingesting this clay soil is the high level of aluminium (37.9 mg/100g).
Newton’s Method and an Exact Opposite That Average into Halley’s Method  [PDF]
Isaac Fried
Applied Mathematics (AM) , 2017, DOI: 10.4236/am.2017.810103
Abstract:
This note is mainly concerned with the creation of oppositely converging and alternatingly converging iterative methods that have the added advantage of providing ever tighter bounds on the targeted root. By a slight parametric perturbation of Newton’s method we create an oscillating super-linear method approaching the targeted root alternatingly from above and from below. Further extension of Newton’s method creates an oppositely converging quadratic counterpart to it. This new method requires a second derivative, but for it, the average of the two opposite methods rises to become a cubic method. This note examines also the creation of high order iterative methods by a repeated specification of undetermined coefficients.
Newton, Halley, Pell and the Optimal Iterative High-Order Rational Approximation of √N  [PDF]
Isaac Fried
Applied Mathematics (AM) , 2018, DOI: 10.4236/am.2018.97059
Abstract:
In this paper we examine single-step iterative methods for the solution of the nonlinear algebraic equation f (x) = x2 - N = 0 , for some integer N, generating rational approximations p/q that are optimal in the sense of Pell’s equation p2 - Nq2 = k for some integer k, converging either alternatingly or oppositely.
Entropy of Living versus Non-Living Systems  [PDF]
Isaac C. Sanchez
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.27077
Abstract: Using a careful thermodynamic analysis of unfertilized and fertilized eggs as a paradigm, it is argued that neither classical nor statistical thermodynamics is able to adequately describe living systems. To rescue thermodynamics from this dilemma, the definition of entropy for a living system must expand to acknowedge the latent genetic information encoded in DNA and RNA.As a working supposition, it is proposed that gradual unfolding (expression) of genetic information contributes a negative entropy flow into a living organism that alleviates apparent thermodynamic inconsistencies. It is estimated that each coding codon in DNA intrinsically carries about -3k in negative entropy. Even prior to the discovery of DNA and the genetic code, negative entropy flow in living systems was first proposed by Erwin Schrödinger in 1944.
Cardiac Immobilization in Beating Heart Surgery Using Pericardial Bands  [PDF]
Srikrishna Sirivella, Isaac Gielchinsky
World Journal of Cardiovascular Surgery (WJCS) , 2012, DOI: 10.4236/wjcs.2012.22005
Abstract: A novel technique of stabilization of the coronary targets with autogenous pericardial bands is described in off pump coronary revascularizations. Pericardial bands are placed across the coronary targets and snared to the pericardial well for local cardiac immobilization. This technique can be used as an alternate to mechanical stabilizers for immobilization of the coronary targets.
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