9 research outputs found

    Assessing the effects of quality regulation in Norway with a quality regulated version of dynamic DEA Assessing the effects of quality regulation in Norway with a quality regulated version of dynamic DEA Assessing the effects of quality regulation in Norw

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    Abstract In order to find out why energy-not-supplied in Norway -the most important indicator for the quality of service in the quality-regulation regime there -decreased more pronounced before the introduction of quality-regulation in 2001 than after it, we develop a dynamic quality-DEA-model and apply it to a representative sample of distribution-net operators. Our model enables us to calculate a counter-factual and thus to tentatively answer the question: What would have happened, had there been no quality-regulation? This way we find strong evidence that the quality-regulation in Norway did not have an effect on the behavior of the firms

    Analyse von sicherheitsrelevanten Ereignissen in verfahrenstechnischen Anlagen

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    This report describes results of a research project 'Development of standards for event and incident analysis in process industries'. A specific method for the systematic analysis of events was developed and tested in this project. A great variety of interviews with representatives of utilities, regulatory bodies, consultants, industrial associations of process industries, labour union and the Berufsgenossenschaft of chemical industry identified a clear need for a practicable methodology for safety related learning from experience. The project analyzed various existing event reporting systems and event analysis methods. Based on psychological insights concerning causal reasoning and theories of organizational learning a method for analyzing events systematically was developed which focuses particularly on human factors. The resulting method 'SOL-Safety through Organizational Learning' was then evaluated in a chemical plant (Hoechst Marion Roussel) and a consulting body. SOL was in both instances judged to be a simple, flexible, practicable and cost optimizing method which contributes demonstrably to systematic learning from experience. A computer assistance module of SOL facilitates a user friendly and time economical support of the event analysis process and leads to meaningful event documentation. (orig.)Also published in UBA-Texte 79/98SIGLEAvailable from TIB Hannover: RN 8908(98-113,1) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany); Umweltbundesamt, Berlin (Germany)DEGerman

    A unified classification of two-stage DEA models

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    Standard Data Envelopment Analysis (DEA) is used to evaluate the efficiency of Decision Making Units (DMUs) and treats its internal structures as a "black box". The aim of this paper is twofold. The first task is to survey and classify the two-stage DEA models and to present the applications of these models across the literature. The second aim is to point out the significance of these models for the decision maker of a supply chain. We analyze the simple case of these models which is the two-stage models and a few more general models such as network DEA models. Furthermore, we study some variations of these models such as models with only intermediate measures between the first and second stages and models with exogenous inputs in the second stage. We define four categories: independent, connected, relational and game theoretic two-stage DEA models. We present each category along with its mathematical formulations, main applications and possible connections with other categories. Finally, we present some concluding remarks and a number of policy implications and opportunities for the decision maker. © 2013 Elsevier Ltd
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