“…Since this paper deals with educational investments, we restrict our comparison to a group of papers that study investments in broadly defined skills. We further classify these papers into three groups by their measures of a child's endowment: (1) low birth weight or exposure to adverse environment (a pandemic, nuclear power plant accident, and the like) while in utero or in early childhood (Abufhele et al, 2017;Aizer and Cunha, 2012;Almond and Currie, 2011;Almond et al, 2009;Bharadwaj et al, 2018Bharadwaj et al, , 2013Black et al, 2010;Datar et al, 2010;Halla and Zweimüller, 2014;Hsin, 2012;Kelly, 2011;Parman, 2015;Restrepo, 2016;Venkataramani, 2012;Yi, 2019); (2) education polygenic score (PGS) (Sanz-de Galdeano and Terskaya, 2019); (3) endowments measured after birth (Ayalew, 2005;Behrman et al, 1982Behrman et al, , 1994Borga and Pidkuyko, 2018;Frijters et al, 2013;Nicoletti and Tonei, 2017;Rosales-Rueda, 2014;Terskaya, 2019;Yi et al, 2015).…”