“…For collective PRP , we created an index ranging from 0 to 2 based on the presence (0 = no; 1 = yes) of ‘variable extra pay linked to the performance of the team, working group, or department’ and/or ‘variable extra pay linked to the results of the company or establishment (profit-sharing scheme)’. The use of dummies to assess the presence/absence of different forms of PRP is common in the compensation literature (Curran and Walsworth, 2014; De Spiegelaere et al, 2018; Della Torre et al, 2020) and SME research (Patel and Conklin, 2012; Sels et al, 2006; Way, 2002). Specifically, Patel and Conklin (2012) argued that, because SMEs lack infrastructures and formal procedures for HR, it is difficult to clearly understand the usage and assess the effectiveness of individual practices and thus, ‘a continuous scale for each practice may be less valid and reliable than a binary coding approach’ (p. 216).…”