“… 12. Elliot, Arthurs, and Williams (2000); Langer (2000, 2001); Riley, Burrell, and McCallum (2004); Nye, Konstantopoulos, and Hedges (2004); Borman and Dowling (2006); van de Grift and Houtveen (2006); Lauen (2007); Ylimaki, Jacobson, and Drysdale (2007); Lleras (2008); Gross, Booker, and Goldhaber (2009); Donaldson and Moore Johanson (2010); Loeb, Kalogrides, and Lai Horng (2010); Ronfeldt (2012); Corcoran, Schwartz, and Weinstein (2012); Lee Lauen and Gaddis (2012); Zimmer and Guarino (2013); Carlson, Cowen, and Fleming (2013); Cohen-Vogel, Feng, and Osborne-Lampkin (2013); Hart (2014); Anzia and Moe (2014); Gershenson and Langbein (2015); Heers et al (2015); McEwan et al (2015); Xu, Özek, and Hansen (2015). …”