“…The leading economic factors believed to be responsible for the widening economic stratification outcome are: (i) heterogeneity in ability, skills, or human capital (cf. Benabou 1996a, Nechyba 2003, Chen, Peng, and Wang 2009, Kempf and Moizeau 2009, Berliant and Kung 2010), (ii) heterogeneity in nonhuman wealth (cf. Benabou 1996a, Nechyba 1997), (iii) heterogeneity in an individual’s accessibility to capital markets (cf.…”