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Es werden theoretische und empirische Aspekte der Kuppelproduktion untersucht, wobei unerwünschte Kuppelprodukte als Ursache von Umweltproblemen im Vordergrund stehen. Ziel ist es, die Folgen umweltpolitischer Maßnahmen auf Industriebereiche, die durch Kuppelproduktion vernetzt sind, zu...
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The purpose of this paper is to introduce a modification of a standard four input production process where energy is used in an inefficient way due to partly unnecessary waste of energy. In this production process, R&D investment is an additional input in order to improve energy efficiency. It...
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The analysis of return series from financial markets is often based on the Peaks-over-threshold (POT) model. This model assumes independent and identically distributed observations and therefore a Poisson process is used to characterize the occurrence of extreme events. However, stylized facts...
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