22 Pages Posted: 1 Mar 2012
Date Written: January 2012
We consider a model where the criminal decision of each individual is affected by not only her own characteristics, but also by the characteristics of her friends (contextual effects). We determine who the key player is, i.e. the criminal who once removed generates the highest reduction in total crime in the network. We generalize the intercentrality measure proposed by Ballester et al. (2006) by taking into account the change in contextual effects following the removal of the key player. We also provide an example that shows how the new formula can be calculated in practice.
Keywords: contextual effects., Crime, key players, peer effects
JEL Classification: A14, D85, K42, Z13
Suggested Citation: Suggested Citation
Ballester, Coralio and Zenou, Yves, Key Player Policies When Contextual Effects Matter (January 2012). CEPR Discussion Paper No. DP8806. Available at SSRN: https://ssrn.com/abstract=2013797
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