@techreport{GreilSchwarzStein2018, author = {Greil, Stefan and Schwarz, Christian and Stein, Stefan}, title = {Fairness and the Arm's Length Principle in a Digital Economy}, institution = {Fachbereich - Wirtschaftswissenschaften}, series = {Forschungsberichte des Fachbereichs Wirtschaftswissenschaften der Hochschule D{\"u}sseldorf}, number = {42}, year = {2018}, }