Frontiers in Ecology and the EnvironmentVolume 19, Issue 2 p. 87-88 Write Back Undesirable outcomes seasonally dry forests Scott L Stephens, Corresponding Author [email protected] Department of Environmental Science, Policy, Management, University California–Berkeley, Berkeley, CASearch for more papers by this authorA LeRoy Westerling, Management Complex Systems, California–Merced, Merced,...

behavioral problems in cats have drawn more attention in recent years since they affect the cat-owner relationship. this study was designed to study the rate of cats with undesirable behaviors according to their owners. frequency of behavioral problems in 167 cats attending small animal hospital, faculty of veterinary medicine, university of tehran, was evaluated using a questionnaire. accordin...

In the performance evaluation process, using the classic data envelopment analysis (DEA) models, decision making units (DMUs) are considered as black boxes. While in many cases and different applications such as investment funds, banks, insurance companies, etc., DMUs have a network structure. In addition, in many network structures, some of the indicators used to calculate the efficiency...

Data envelopment analysis (DEA) is a non-parametric approach for measuring the relative efficiencies of peer decision making units (DMUs). Many studies have examined DEA efficiencies of two-stage systems, where all the outputs from the first stage are the only inputs to the second stage. Although single-stage DEA models with undesirable input-outputs have been extensively studied, there still l...

Conventional data envelopment analysis (DEA) models normally assume all inputs and outputs are real valued and continuous. However in problems some inputs and outputs can only take integer values, also, both desirable and undesirable outputs can be generated . In this paper the effect of undesirable outputs in integer DEA model is discussed. The proposed model distinguishes weak disposability o...