“…This research makes a theoretical contribution in three areas. The first is in the area of motivational dynamics of group-level goals (e.g., Collins, 2000; Hackman & Katz, 2010; Haslam, 2004; Hertel et al, 2000, 2008; Karau & Williams, 1993, 2001; Kerr, 1996; Kerr & Bruun, 1983; Mathieu et al, 2019; Seta, 1982; Tannenbaum et al, 2012; Thürmer et al, 2019; Thürmer & Kunze, 2023; Weingart & Weldon, 1991; Weldon & Weingart, 1988). We document a novel phenomenon whereby individuals are more motivated to take an action that facilitates the progress of a group member than to undertake an equivalent action that facilitates one’s own progress.…”