Die Wiederverwendung oder stoffliche Verwertung von Altprodukten, Verpackungen und Abfallstoffen ist oft nur dann sinnvoll, wenn diese in möglichst homogenen Objektsorten bzw. Materialfraktionen vorliegen. Dies erfordert entweder eine sortenreine Kollektion der Objekte schon durch die...

This paper explores a single-item capacitated lot sizing problem with minimum order quantity, which plays the role of minor set-up cost. We work out the necessary and suffcient solvability conditions and apply the general dynamic programming technique to develop an O(T³) exact algorithm that is...

The paper examines the determinants that influence the environmental innovation behaviour of companies in Germany in a multivariate context by using data from the Mannheimer Innovations Panel 1993, which was part of the Community Innovation Survey. The objective is to analyse the general...

In facility layout problems, a major concern is the optimal design or remodeling of the facilities of an organization. The decision maker's objective is to arrange the facility in an optimal way, so that the interaction among functions (i.e. machines, inventories, persons) and places (i.e....

In der vorliegenden Untersuchung wird die operative Entscheidung über Eigenfertigung und Fremdbezug betrachtet. Exemplarisch wird dargelegt, dass klassische Entscheidungshilfen unwirtschaftliche Ergebnisse hervorbringen. Die qualitative und quantitative Fehlspezifikation der Fremdbezugsprodukte...

More and more firms tend nowadays to adopt environment-friendly attitudes. Their motivation originates in local environmental regulations or requirements of foreign markets to which firms export (both induced by consumers and investors' valuation of pro-environment initiatives). There is a...