“…In addition, using the purging strategy of Abraham and Katz (1986) the QR panel approach can alleviate any potential endogeneity problem of labour reallocation. Other approaches have been suggested in the literature to address the endogeneity of reallocation (see, for example, Bakas et al, 2016, 2017 and Chodorow‐Reich & Wieland, 2020, among others). Bakas et al (2016, 2017) use a system GMM approach to tackle endogeneity, by employing lagged levels and differences of the endogenous variables as instruments, while Chodorow‐Reich and Wieland (2020) use an instrumental variable framework, by exploring a Bartik‐style measure of predicted reallocation as an instrument for actual reallocation.…”