“…The article “Increasing the willingness to stay – a novel and comprehensive member satisfaction index (MSI) model tested in a leading German tennis club” by Kölbl et al (2024) examines member satisfaction in tennis clubs and its relationship with the willingness to stay. In detail, the study proposes a novel member satisfaction index (MSI), which results from member perceptions of various formatively measured service quality dimensions (club atmosphere, club facilities and the price/quality ratio of the membership fee).…”