Affiliation: | 1. German Sport University Cologne, Department of Sport Economics and Sport Management, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany;2. Technische Universität München, Department of Sport & Health Management, Uptown Munich Campus D, Georg-Brauchle-Ring 60/62, 80992 Munich, Germany;3. Saarland University, Campus A5.4, Institute for Consumer & Behavioral Research, 66123 Saarbruecken, Germany |