This paper introduces as an intertemporal variable cost indirect technology which permits technological change over time and allows for financial flexibility, i.e., intertemporal budgeting. It characterizes agencies which maximize outputs or services subject to the budget they face. We define...

We develop a network technology model for pollution abatement that distinguishes between the two primary forms that abatement can take: Prevention of emissions from occurring in the first place, and treatment of any emissions that are generated by the production process. Our network model...

Forest fuel defined as branches and tops (GROT) of harvested trees represents a large share of forest biomass and is increasingly viewed as a potential energy source. This study assesses the economic potentials of forest bioenergy production in Swedish forests, using a network data envelopment...