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Summary With this paper we attempt to complement the discussion on price volatility on stock markets by an approach, which can also take into consideration so-called nonrational behaviour. This happens by formally integrating socioeconomic elements into the price expectation process of the share...
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Zusammenfassung In der vorliegenden Studie wird mit Hilfe der nicht-parametrischen DEA-Methode die relative Effizienz von representativ ausgewählten Stromversorgungsunternehmen in Deutschland bestimmt. Die DEA erlaubt es, auch nicht marktfähige In- und Outputfaktoren in die Analyse...
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Summary In this paper we add new results to the investigation of productivity levels rather than productivity changes, as proposed by Hall/Jones (1996, 1997, 1999). To obtain measures of relative productivity levels we depart from traditional growth accounting and calculate the Malmquist index...
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