“…The scope of the candidates to open the black box of the mechanism is wide. It extends from cross-national comparisons (Dastmalchian, 2020; Gilbert and Von Gilnow, 2015) and investigations based on company size (Arthur et al, 2019; Broszeit et al, 2019; Forth and Bryson, 2018; Wu et al, 2015) to studies where the mechanism has been brought closer to the shop floor level. Various dimensions of job quality, organisation culture and job satisfaction (Den Hartog and Vergurg, 2004; Garg, 2019; Lee et al, 2017; Wood and Ogbonnaya, 2018) – but also union density (Vazquez-Bustelo and Avella, 2019) and social capital (Jiang and Liu, 2015) – have been investigated as mediators between productivity and high-performance practices.…”