Browsing by Author "Mensah, J.T."
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Item Carbon dioxide emissions, economic growth, industrial structure, and technical efficiency: Empirical evidence from Ghana, Senegal, and Morocco on the causal dynamics(Energy, 2012-11) Adom, K.P.; Bekoe, W.; Amuakwa-Mensah, F.; Mensah, J.T.; Botchway, E.This paper investigated the short-run causal relationships and the long-run equilibrium relationships among carbon dioxide emissions, economic growth, technical efficiency, and industrial structure for three African countries. Using Bounds cointegration approach the result showed evidence of multiple long-run equilibrium relationships for Ghana and Senegal but a one-way long-run equilibrium relationship for Morocco. The result from the Toda and Yomamoto granger causality test showed a mix of bidirectional, unidirectional, and neutral relationships for all countries. Whilst in Senegal carbon dioxide emission was not found to be a limiting factor to economic growth; it was found to act as a limiting factor to economic growth in Morocco and Ghana. Lastly, the result from the variance decomposition analysis revealed that economic growth contributes largely to changes in future carbon dioxide emissions in Senegal and Morocco whilst in Ghana technical efficiency contributes largely to changes in future variations in carbon dioxide emissions. These results have important policy implications for these countries' energy efficiency systems. © 2012.Item Who adopts LPG as the main cooking fuel and why? Empirical evidence on Ghana based on national survey(Elsevier, 2016-09) Karimu, A.,; George, A.,; Mensah, J.T.The aim of this paper is to identify the factors that influence the probability of adopting LPG as the main cooking fuel in Ghana using household level data gleaned from last two nationwide household surveys (GLSS 5 & GLSS 6). Using a flexible semi-parametric specification, the following were uncovered. First, we find socioeconomic and demographic factors such as income, education, access to urban infrastructure, and location of household, as key drivers of households’ choice of LPG as main cooking energy source. Again the influences of these factors are stable across time, and with a strong price effect. The evidence shows that urban households with better socioeconomic and demographic factors are likely to adopt LPG as the main cooking fuel relative to households in rural areas and also urban households with poor socioeconomic and demographic factors. Finally, we observe that the imposition of fully parametric structure (functional form) prior to estimation on factors such as age of household head, income, and household size as done in the literature is inappropriate, at least in the case of Ghana and tend to bias the marginal effects. There is strong evidence of variations in the response rate of LPG adoption over the domains of income, household size, and the age of the household head. The results suggest a policy dichotomy between rural and urban dwellers for it to be effective.