Krejbich, Paula https://orcid.org/0000-0002-9079-5817
Purnhagen, Kai P. https://orcid.org/0000-0002-9902-7347
Birringer, Marc https://orcid.org/0000-0003-0343-4704
Funding for this research was provided by:
Universität Bayreuth
Article History
Received: 13 October 2025
Accepted: 6 July 2026
First Online: 27 July 2026
Declarations
Clinical Trial Number: Not applicable.
Competing Interests: Kai P. Purnhagen is a member of the editorial board of the Journal of Consumer Policy. The authors declare that no other competing interests exist.