Aims: To examine the associations between nurse work environment with nurses' silence about patient safety and the mediating effects of professional discrimination experienced by nurses. Design: Multicentre cross-sectional study. Methods: Between January and April 2019, 607 nurses and nursing assistants from seven hospitals in Greece assessed their clinical environment using the 'Practice Environment Scale of the Nursing Work Index Revised-PES-NWIR', and the silence about patient safety. The 'Experiences of Discrimination Index' was adapted to specifically address experienced discrimination based on the nursing profession. The PROCESS macros for SPSS were used to examine the above associations. Findings: Better nurse practice environment, with the exception of 'staffing and resource adequacy' dimension, was directly associated with less experienced professional discrimination, and directly and indirectly associated with less silence about patient safety, through the mediating role of professional discrimination experienced by nurses. Conclusions: Silence about patient safety is dependent on the clinical work environment and may be a response of nurses to discrimination in the work context. Both an improvement in the nurse work environment and a decrease in professional discrimination would minimize silence about patient safety.Impact: On many occasions, nurses are directly or indirectly discouraged from voicing their concerns about patient safety or are ignored when they do, leading to employee silence and decreasing the standard of care (Alingh et al.,

The present paper examines whether Airbnb listing prices differ significantly between 'casual' hosts and hosts with multiple listings, regarded as professionals. To this effect the Airbnb apartment market in Athens (Greece) is used as a case study. Drawing on a sample of about 3.500 Airbnb apartments listed in May 2017, the study employs, first, typical hedonic price modelling to assess the determinants of listings' price of both groups, and then it uses the Blinder-Oaxaca decomposition methodology to examine whether there is a price gap between casual and professional hosts, the characteristics that cause this price gap and their relative contribution to it. The research finds a statistically significant difference in the Airbnb pricing between casual and professional hosts, where about a half of the price gap is attributed to the 'better' listings that professionals manage (in terms of size, availability of amenities and locational attributes), and a half to the different reaction hosts have towards specific Airbnb characteristics. In particular, professionals value higher (i.e. place more trust on) the Superhost badge issued by Airbnb as an institution, whereas casual hosts place trust on (and price accordingly) the evaluations provided by the guests.