См., кроме прочего: Marianne Bertrand and Jessica Pan, “The Trouble with Boys: Social Influences and the Gender Gap in Disruptive Behavior”, American Economic Journal: Applied Economics 5, no. 1 (2013); Shannon M. Pruden, Susan C. Levine, and Janellen Huttenlocher, “Children’s Spatial Thinking: Does Talk About the Spatial World Matter?”, Developmental Science 14 (November 2011); Bruce Sacerdote, “How Large Are the Effects from Changes in Family Environment? A Study of Korean American Adoptees”, The Quarterly Journal of Economics 122, no. 1 (2007); Roland G. Fryer Jr. and Steven D. Levitt, “Understanding the Black-White Test Score Gap in the First Two Years of School”, The Review of Economics and Statistics 86, no. 2 (May 2004); Huttenlocher, Marina Vasilyeva, Elina Cymerman, and Susan Levine, “Language Input and Child Syntax”, Cognitive Psychology 45, no. 3 (2002).