TY - JOUR A1 - Conley, D. A1 - Glauber, R. T1 - Parental educational investment and children’s academic risk: Estimates of the impact of sibship size and birth order from exogenous variation in fertility Y1 - 2006 DO - 10.3368/jhr.XLI.4.722 VL - 41 IS - 4 ER -