@article{ref1,
title="Katrina's Children: Evidence on the Structure of Peer Effects from Hurricane Evacuees",
journal="NBER working papers series",
year="2009",
author="Imberman, Scott and Kugler, Adriana D. and Sacerdote, Bruce",
volume="2009",
number="online",
pages="w15291-w15291",
abstract="In 2005, hurricanes Katrina and Rita forced many children to relocate across the Southeast. While schools quickly enrolled evacuees, receiving families worried about the impact of evacuees on non-evacuee students. Data from Houston and Louisiana show that, on average, the influx of evacuees moderately reduced elementary math test scores in Houston. We reject linear-in-means models of peer effects and find evidence of a highly non-linear but monotonic model - student achievement improves with high ability and worsens with low ability peers. Moreover, exposure to undisciplined evacuees increased native absenteeism and disciplinary problems, supporting a &quot;bad apple&quot; model in behavior.<p />",
language="",
issn="0898-2937",
doi="",
url="http://dx.doi.org/"
}