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Duration of Heads of State in Power and Economic Growth in Sub-Saharan Africa
Limi Kouotou Hibrahim,Boniface Ngah Epo 중앙대학교 경제연구소 2023 Journal of Economic Development Vol.48 No.1
This paper evaluates the impact of the duration of heads of state in power on economic growth on a panel of 41 countries in sub-Saharan Africa over the period 1990-2016. The results find diminishing returns after the optimal threshold of twelve, eleven and fifteen years for sub-Saharan Africa, English-speaking and French-speaking African countries respectively. The results are robust in both static and dynamic settings as well as for fixed effects related to the educational profile of heads of state
Patrick Mountapmbeme Kouotou,Guan-Fu Pan,Jun-Jie Wenga,Shi-Bin Fan,Zhen-Yu Tian 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.35 No.-
The effective evaluation of the catalytic performance of Co3O4 supported on an inert carrier wasinvestigated toward the deep oxidation of light olefins. Thin Co3O4 films were deposited on grid mesh ofstainless steel using one-step chemical vapor deposition method. The as-deposited materials werecharacterized in terms of structure, morphology and composition. Co3O4 crystals with cubic spinelstructures composed of Co2+, Co3+ and nucleophilic oxygen species (O2 ) were obtained. The catalyticresults indicated that Co3O4 supported on steel mesh was highly active to enable the completeconversion of C3H6 and n-C4H8 with a Mars-van Krevelen type mechanism.