Sibling Spillovers
利用佛罗里达和丹麦的行政数据，研究家庭中有一个残疾弟弟或妹妹对其他孩子的影响，发现出生顺序会影响这种溢出效应的大小。
Abstract It is notoriously difficult to identify peer effects within the family. Using administrative data on children from both Florida and Denmark, the paper examines the effects of having a disabled younger sibling. To address the identification challenge, the paper compares the differential effects for first- and second-born children in three-plus-child families, taking advantage of the fact that birth order influences the amount of time that a child spends in early childhood with their younger siblings, disabled or not. The paper finds evidence that, relative to the first born, the second child in a family is differentially affected when the third child is disabled.