Sustainable development remains a formidable challenge for the societies of the 21st century. A number of concepts have been put forward on how to reach sustainability at a macro-economic level. These concepts are based on different points of view of economic, social and environmental systems...

Wastewater systems in developed cities contribute significantly to public health. The related systems are energy and resource intensive and do not recover nutrients in an efficient and effective way. Separating wastewater to greywater and blackwater at the source and exploiting organic municipal...

Netzwerke weisen meist eine komplexe Arbeitsteilung auf, die den einzelnen Akteuren konkrete Aufgaben, Rechte und Verpflichtungen zuweist. Zusätzlich zeichnen sich Netzwerke häufig durch mehrstufige Strukturen aus, die dem Tatbestand Rechnung tragen, dass Aufgaben zentral oder dezentral...

In reverse logistics networks, products (e.g., bottles or containers) have to be transported from a depot to customer locations and, after use, from customer locations back to the depot. In order to operate economically beneficial, companies prefer a simultaneous delivery and pick-up service....

In the area of reverse logistics, remanufacturing has been proven to be a valuable option for product recovery. In many industries, each step of the products' recovery is carried out in lot sizes which leads to the assumption that for each of the different recovery steps some kind of fixed costs...

Background: The remanufacturing plan of perfect cost makes reference to the remanufacturing plan of an optimal solution of the economic lot-sizing problem with remanufacturing (ELSR). In this paper, we address the problem of determining the quantities of the remanufacturing plan of perfect cost...

The remanufacturing industry as a whole and the automotive sector in particular have, over the years, proven to be beneficial to the environment and economically lucrative to the companies involved as well as to their customers. However, remanufacturing is associated with complicating...

We empirically study the use of value-based management systems in listed German firms and examine implications for firms' stock market performance. Using a novel, hand-collected data set covering 1,083 firm years from 2002 to 2008, we find that value-based management systems become increasingly...

In Industriebetrieben standen viele Jahre die Arbeitskosten im Mittelpunkt der Unternehmensstrategien. Um die Reduzierung von Material und Energie und um den Aufbau karbonarmer Prozesse und Produkte wurde sich wenig gekümmert. Seit einigen Jahren hat sich das geändert. Verbindet sich dahinter...