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When benchmarking production units by non-parametric methods like data envelopment analysis (DEA), an assumption has to … frontiers across samples of producers. Until now, no exact tests for examining returns to scale assumptions in DEA, or for test … test for the hypothesis of constant returns to scale in DEA. The others are tests for general frontier differences and …
Persistent link: https://www.econbiz.de/10012132662
Research on productive efficiency at the firm level has developed as an important and active strand of research the last decades, both within operations research, management science and economics. However, the interests pursued within the fields have had some differences regarding sound...
Persistent link: https://www.econbiz.de/10010530534
This article provides a generalization of the materials balance-based production model introduced by Coelli et al. (2007). Based on this, some new environmental efficiency (EE) measures are presented. The Coelli et al. (2007) EE measure and its extension by Rødseth (2016) produce biased...
Persistent link: https://www.econbiz.de/10012606693
This article provides a generalization of the materials balance-based production model introduced by Coelli et al. (2007). Based on this, some new environmental efficiency (EE) measures are presented. The Coelli et al. (2007) EE measure and its extension by Rødseth (2016) produce biased...
Persistent link: https://www.econbiz.de/10012418909
Persistent link: https://www.econbiz.de/10012132679
Applications of the DEA models show that inadequate results may arise in some cases, two of these inadequacies being: a …) too many efficient units may appear in some DEA models; b) a DEA model may show an inefficient unit from the point of view … concept of a terminal unit is introduced for such units. A method for improving the adequacy of DEA models based on terminal …
Persistent link: https://www.econbiz.de/10008840196
Applications of the DEA models show that inadequate results may arise in some cases, two of these inadequacies being: a …) too many efficient units may appear in some DEA models; b) a DEA model may show an inefficient unit from the point of view … adequacy of DEA models based on terminal units is suggested, and an example shown based on a real-life data set for Russian …
Persistent link: https://www.econbiz.de/10009658232
There are some specific features of the non-radial DEA (data envelopment analysis) models which cause some problems … under the returns to scale measurement. In the scientific literature on DEA, some methods were suggested to deal with the … returns to scale measurement in the non-radial DEA models. These methods are based on using Strong Complementary Slackness …
Persistent link: https://www.econbiz.de/10009658315
Schätzverfahren "Data Envelopment Analysis (DEA)" verwendet, das die Gesamteffizienz, die Skaleneffizienz und die technische (X … Einfluss auf die X-Effizienz vermutet wird, werden anhand des Tobit- Modells und der DEA-Bootstrap-Regression (DBR) ermittelt. …
Persistent link: https://www.econbiz.de/10003246043
Levels of CO2 emissions from electricity generation in the U.S. have changed considerably in the last decade. This development can be attributed to two factors. First, the shale gas revolution has reduced gas prices significantly, leading to a crowding out of the more CO2-intensive coal for...
Persistent link: https://www.econbiz.de/10011590580