Peer Effects on Violence: Experimental Evidence from El Salvador

71 Pages Posted: 18 Mar 2020

Multiple version iconThere are 4 versions of this paper

Date Written: March 17, 2020


This paper provides experimental evidence of the effect of having peers with different propensities for violence in the context of an afterschool program. By randomly assigning students to participate in the program with a set of similar or diverse peers in terms of violence, the study measures the effects of segregation or integration on students' behavioral, neurophysiological, and academic outcomes. The paper also exploits a discontinuity around the median of the propensity for violence distribution, to measure the impacts of segregation on marginal students. The results indicate that integrating students with different propensities for violence is better for highly and less violent children than segregating them. In particular, the intervention can have unintended effects on misbehavior and stress, if highly violent students are segregated and treated separately from their less violent peers.

Suggested Citation

Dinarte, Lelys, Peer Effects on Violence: Experimental Evidence from El Salvador (March 17, 2020). World Bank Policy Research Working Paper No. 9187, Available at SSRN:

Lelys Dinarte (Contact Author)

World Bank ( email )

1818 H Street, NW
Washington, DC 20433
United States

Do you have a job opening that you would like to promote on SSRN?

Paper statistics

Abstract Views
PlumX Metrics