Katrina's Children: Evidence on the Structure of Peer Effects from Hurricane Evacuees
研究了2005年飓风卡特里娜和丽塔导致的学生迁移对接收学校原有学生成绩和行为的影响，发现平均无显著影响，但高成就同伴提升成绩、低成就同伴降低成绩，且撤离者流入增加了休斯顿中学的缺勤和纪律问题。
In 2005, Hurricanes Katrina and Rita forced many children to relocate across the Southeast. While schools quickly enrolled evacuees, families in receiving schools worried about the impacts on incumbent students. We find no effect, on average, of the inflow of evacuees on achievement in Houston. In Louisiana we find little impact on average and we reject linear-in-means models. Moreover, we find that student achievement improves with high achieving peers and worsens with low achieving peers. Finally, an increase in the inflow of evacuees raised incumbent absenteeism and disciplinary problems in Houston's secondary schools.