Redshirting, Compulsory Schooling Laws, and Educational Attainment
29 Pages Posted: 14 Sep 2010 Last revised: 17 Nov 2010
Date Written: September 13, 2010
A wide literature uses date of birth as an instrument to study the causal effects of educational attainment. This paper shows how parents delaying their children’s initial enrollment in kindergarten, a practice known as redshirting, can make estimates obtained through this identification framework all but impossible to interpret. A latent index model is used to illustrate how the monotonicity assumption in this framework is violated if redshirting decisions are made in a setting of essential heterogeneity. Empirical evidence is presented from the ECLS-K data set that favors this scenario; redshirting is common and heterogeneity in the treatment effect of educational attainment is likely a factor in parents’ redshirting decisions.
Keywords: Instrumental Variable, Local Average Treatment Effect, Average Causal Response,Essential Heterogeneity, Independence, Monotonicity, Latent Index Model
JEL Classification: C01, C21, I21, J01
Suggested Citation: Suggested Citation