Joachim Büschken

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This paper compares three different models of efficiency measurement on the basis of multiple inputs and outputs. Various data envelopment models are compared with principle component analysis and with a naïve model that derives a single efficiency score for every unit by averaging all possible output-input ratios. The data set for this comparison consists(More)
Scoring customers with regard to the expected number of their future transactions is of fundamental interest to direct marketers. For the purpose of customer scoring, a variety of models have been developed, based on the negative binomial distribution. Extensions of such models allow for customer defection (" buy until you die "). We extend customer scoring(More)
In this paper, we analyze the influence of organizational design and boundary-spanning activities on the performance of new product development teams, differentiated by the stage of the innovation process. The organizational antecedents considered are organic vs. mechanistic structures of such teams. It is proposed that due to differing information needs(More)
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