A linear optimization problem which is amenable to column generation and contains a single parameter in the objective function is considered. We extend and adapt the standard linear programming column generation scheme to effectively and efficiently solve this problem for all values of the...

The paper investigates the impact of different sources of income on wine farm total income inequality in Hungary using Farm Accountancy Data Network data for the period 2013-2019. The decomposition of the Gini coefficient is applied to focus on the impact of the Common Agricultural Policy (CAP)...

In Ethiopia, the gender gap in financial inclusion is high, and the effect of socioeconomic variables on the gap is not well investigated. The main objective of this study is to investigate determinants of the financial inclusion gender gap in Ethiopia using the World Bank's Global Findex...

Within the water industry, some water companies provide both water and sanitation services whereas other just water services. Assuming a common technology of different types of water companies may lead to biased estimates of performance. To deal with the problem of incomparability of...

This paper aims to verify the long run structural changes in Greenhouse Gas (GHG) emissions in Brazil which presents the particularity of high emissions in the agriculture and livestock sectors, and low emissions in energy sectors. We use an additive Structural Decomposition Analysis (SDA) to...

Accurate predictions of hourly PM2.5 concentrations are crucial for preventing the harmful effects of air pollution. In this study, a new decomposition-ensemble framework incorporating the variational mode decomposition method (VMD), econometric forecasting method (autoregressive integrated...

Providing punctual, reliable and performant services to customers is one main goal of railway network operators. The railway scheduling problem is to determine, ahead of time (timetabling), a plan describing the timing of the operations in a railway network, or updating such plan during...