“…These numbers are surprisingly low considering that none of the investigated interventions in our review considers random assignments. The empirical fields where endogeneity is more discussed are education (Waldo, 2007; Schubert and Yang, 2016; Santín & Sicilia, 2018; Papadimitriou and Johnes, 2019; D'Inverno et al., 2021), local government and environment (Halkos and Tzeremes, 2011b; Broersma et al., 2013; Asatryan and De Witte, 2015; Cordero et al., 2017; Ma et al., 2020), and environment (Pan et al., 2019; Czyźewski et al., 2020; Ma et al., 2020; Zhang et al., 2020). Interestingly, endogeneity is regarded, in any field of applications, only from a policy evaluation perspective, that is, it is discussed in terms of correlation between a regressor and the error term.…”