JEL Classification: I11ABSTRACT. Apart from the fact that trust between doctors and patients is a source of sustainable relations, affecting the behaviour of both parties, it also has its therapeutic value. Therefore, this paper aims to construct a model of trust in the doctor-patient relationship based on qualitative research (analysis of the contents of Internet message boards). The study has revealed that trust towards doctors is a result of overlapping and interpenetration of two levels of trust: macro- and meso-. Macro-trust can be seen as a context in which all the dimensions of institutional trust are 'embedded'. Whereas meso-trust (institutional) is described in terms of three dimensions: benevolence, competence and integrity.Keywords: system trust, institutional trust, doctor-patient relationship, Poland.IntroductionTrust in various social and economic relations has recently become a subject of wide debate. Trust between doctors and patients, apart from being a source sustainable relations and having an influence on the behaviour of both partners, is also of therapeutic value (Gilson, 2003). Trust, or lack thereof, is a result of actual experience which arises from some sort of social context and requires a stable institutional background (Strategia Rozwoju Kapitalu Spolecznego 2011-2020). Surveys reveal that in Poland the level of trust towards doctors is lower than in other European countries. More in-depth research is called for to clarify the nature of the complex and multi-faceted issue of trust between doctors and patients. Therefore, the aim of this paper is to put forward a conceptual model of doctor-patient trust on the basis of qualitative research: analysis of comments published online on message boards.1.The circles of doctor-patient trustTrust is an integral element of every satisfying relationship (Morgan, Hunt, 1994). Luhmann describes it as a mechanism which reduces social complexity (Skytt, Winther, 2011). Trust can be defined as the belief that one's partner will act in the common interest (Gilson, 2003), and that neither party will ever attempt to harm their partner by taking advantage of their weaknesses (Morgan, Hunt, 1994). It also means the willingness to invest one's resources in a relationship with another party. Trust stems from a certain positive image established on the basis of previous mutual relations (Brockner et al., 1997), as well as from the perceived degree of reliability of partners. Moreover, trust acts as a mechanism which reduces opportunist behavior (Skytt, Winther, 2011).Patient trust in physician is a multidimensional construct that has different definitions between and within disciplines. Thom et al. (2002) define patient trust in physician as a set of beliefs or expectations that a care provider will perform in a certain way, while Pearson and Raeke (2000) define trust as an emotional characteristic, where patients have a comforting feeling of faith or dependence in a care provider's intentions (Montague, 2010).Patients need trust at each and every stage of building relationships with their doctors. It plays a key role in these relationships, but also positively affects treatment outcomes (Hillen et al., 2011). As Calnan and Rowe point out, a relationship based on trust brings therapeutic benefits, enhances patient satisfaction and, consequently, improves the results of the treatment (Calnan, Rowe, 2006). Research also demonstrates that in a patient-doctor relationship, it is essential that a period of time is reserved to make it possible for some degree of trust to emerge, so that the patient can fully benefit from doctor's advice, or make changes in his or her lifestyle, if so recommended (Peilot et al., 2014).Trust can be studied on several overlapping levels. According to Sztompka, there exist gradually expanding concentric circles of trust: from the most tangible personal relations to more abstract attitudes towards social structures and institutions (Sztompka, 2007). …