Suchergebnisse

With the relatively low per capita electric power consumption in Africa, several electric power pools have been emerging recently. The South African Power Pool (SAPP), the first of those power pools, started operating in 1995 under the aegis of the Southern African Development Community (SADC). This paper attempts to assess the convergence pattern of relative per capita electric power consumption within the SAPP over the period 1995-2005. A comparative study across regions is first conducted. Evidence in support of neoclassical convergence hypotheses such as the β -convergence and σ -convergence is obtained. Stochastic convergence is investigated by applying panel unit roots tests. In contrast, stochastic divergence of electric power consumption is found. Additionally, stochastic kernel analysis provides some evidence of club-formation.

PurposeThe purpose of this paper is to examine the impact of remittance inflows (remittances) on electricity consumption and electric power losses in Jamaica.Design/methodology/approachThe authors use annual data from 1976 to 2014 and apply vector error correction modelling, Granger causality testing and impulse response analysis.FindingsFirst, the authors find that there is co-integration between remittances and the energy variables, namely electricity consumption and electric power losses. Second, short-run Granger causality exists between the energy variables and remittances. This causality is bidirectional between the energy variables and positive changes in remittances, but it is unidirectional running from the energy variables to negative movements in remittances. Third, the authors find that in the long-run remittances have a negative relationship with electric power losses and a positive relationship with the consumption of electricity.Practical implicationsFindings from this paper will help to elucidate the relationship between electricity consumption, and electric power losses, and remittances.Social implicationsThe problem of electric power losses is acute in Jamaica and it is mostly due to theft. At the same time, Jamaica receives significant remittances. Social policy could have a role to encourage the use of remittances to help stem the theft of electricity.Originality/valueThis is the first study that examines the relationships between remittances, electricity consumption and electric power losses.

В статье рассматриваются пути совершенствования процесса определения расчетных нагрузок комплексов вооружения и военной техники с применением математического аппарата теории массового обслуживания. Для определения требуемой мощности источников электрической энергии предлагается использовать систему дифференциальных уравнений Колмогорова для вероятностей состояний. ; У статті розглядаються шляхи вдосконалення процесу визначення розрахункових навантажень комплексів озброєння та військової техніки із застосуванням математичного апарата теорії масового обслуговування. Для визначення необхідної потужності джерел електричної енергії пропонується використовувати систему диференціальних рівнянь Колмогорова для ймовірностей станів. ; This article presents the improvement ways of the definition the designed load points for the weapon system and military equipment using the mathematical tool mass service theory. For the required power electric power sources determination the Kolmogorov differential equation system for state probability is provided.