“…When assessing POPs research since the Ferris et al (2002) review, three related themes emerged. First, although no unifying theory exists, expectancy (Valle, Kacmar, & Zivnuska, 2003), conservation of resources (Sun & Chen, 2017), uncertainty management (Yang, 2017), social learning (Kacmar, Andrews, Harris, & Tepper, 2013), social exchange (Crawford et al, 2019), stress appraisal (Rosen et al, 2014), and affective events (Rosen et al, 2009) conceptualizations surfaced as explanations for how and why POPs relate to employee outcomes. Although these contributions have expanded the existing research base, whether their inclusion has created more of a “weed patch than a well-tended garden” (Pfeffer, 1982: 1) remains an important consideration.…”