This issue offers for the first time supplementary material to articles. It consists of Excel files providing data the research is based on, calculation sheets, and optimization tools. Moreover, text files with pseudo code of algorithms and data of instances used for testing these algorithms as...

The dissertation has been written within the post graduate program of the German Research Foundation (DFG) on “Business Aspects of Loosely Coupled Systems and Electronic Business”. This program focuses on research related to the diffusion of innovations in the digital age. Accordingly, the...