Peer Effects in Program Participation
利用断点回归设计估计挪威带薪陪产假中的同伴效应，发现同事和兄弟分别因同伴被外生诱导休假而增加11和15个百分点的休假概率，机制主要是信息传递，且效应随时间累积。
We estimate peer effects in paid paternity leave in Norway using a regression discontinuity design. Coworkers and brothers are 11 and 15 percentage points, respectively, more likely to take paternity leave if their peer was exogenously induced to take up leave. The most likely mechanism is information transmission, including increased knowledge of how an employer will react. The estimated peer effect snowballs over time, as the first peer interacts with a second peer, the second peer with a third, and so on. This leads to long-run participation rates which are substantially higher than would otherwise be expected.