Stache, Randy https://orcid.org/0009-0009-7393-4625
Article History
Received: 30 August 2025
Accepted: 31 July 2026
First Online: 27 August 2026
Declarations
Ethical Approval: This study was a secondary analysis of anonymized data. Therefore, an ethics approval was not required. Detailed information on ethical matters can be found on the website of the German Institute for Economic Research (DIW), Berlin ( ).
Competing interests: The publication reflects solely the views of the author. The author has no competing interests to declare that are relevant to the content of this article.