The authors

Prof. Dr. Dr. h.c.
Klaus Backhaus

... was professor for Business-to-Business Marketing at the University of Münster (Germany) until 2021.

Prof. Dr.
Bernd Erichson

... was professor for Marketing at the University of Magdeburg (Germany).

Prof. Dr.
Sonja Gensler

... is extraordinary professor at the University of Münster (Germany) and works at the Marketing Center Münster.

Prof. Dr.
Rolf Weiber

... is professor for Marketing, Innovation und E-Business at the University of Trier (Germany).

Dr.
Thomas Weiber

... works as Corporate Strategy Manager at BSH Home Appliances Group in Munich (Germany).