“…To study privacy in such complex contextual settings, Smith, Dinev and Xu (2011) developed the APCO macro model. This model has been widely adapted and is used to explain the effects of privacy policies or the General Data Protection Regulation (GDPR) on privacy concerns (Paul, Scheibe, & Nilakanta, 2020) or to investigate how privacy concerns affect the usage of mobile payment solutions (Reith, Buck, Walther, Lis, & Eymann, 2019), social networking websites (Alashoor, Han, & Joseph, 2017) and fitness trackers (Reith, Buck, Lis, & Eymann, 2020). Our theoretical basis is twofold: Together with the APCO model, we use the theory of planned behavior (Ajzen, 1991), since it has not only been one of the most prominent theories linking beliefs to behavior, but also since it has seen many successful applications in the fields of ethical aspects of technology use, consumer trust and privacy (Cheung & To, 2017; Jafarkarimi, Saadatdoost, Sim, & Hee, 2016).…”