“…Thus far, it is not clear whether the relationship between procedural justice and legitimacy is consistent or 'invariant' (Wolfe et al, 2016). While some studies suggest that age, gender, and ethnicity may moderate the procedural justice to legitimacy pathway (Fine et al, 2020;Kahn & Martin, 2016;Sargeant et al, 2014;Sun & Wu, 2022;Tyler & Huo, 2002), others indicate that this association does not vary across demographic categories such as ethnicity, gender, education, age, income, or ideology (Huo, 2003;Tyler, 1994Tyler, , 2000Tyler, , 2004Wolfe et al, 2016). In order to address this 'invariance thesis', the last objective of this review is to test the effects of contextual factors on the correlation between procedural justice and legitimacy.…”