“…the cost of collaborating (e.g., transport providers in the case of BlaBlaCar company are not allowed to ask for money beyond breaking even) (Kathan et al, 2016). In other words, in addition to trying to make/save money (Botsman & Rogers, 2010;Menor-Campos et al, 2019) and reduce the time needed to realize a business transaction (Schor, 2015), people participate in the CE also to fulfill some "higher-order needs" (Maslow, 1943) such as the need to contribute to environmental sustainability and overall economic stability, maintain good neighborliness, re-connect with society, feel a sense of community-belonging, gain new experiences, prioritize access (to goods) over ownership, and/or support the anti-materialism movement (Schor, 2014;Barnes & Mattisson, 2016;Bucher et al, 2016;Alonso-Almeida et al, 2020). The last but not least background aspect, since in-tragroup activities on collaborative networks are governed horizontally (Ranjbari et al, 2018(Ranjbari et al, , p. 2336, the long-standing issue of establishing and maintaining trust in/among "strangers" (Schor, 2014) has been overcome -at least up to an extent which enables the business to keep going on -by introducing the rating systems, i.e.…”