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NICEP 2026-02: Disrupting Violence, Protecting Lives: Strangulation Laws and Intimate Partner Homicides

 

Abstract

Non-fatal strangulation (NFS) is a form of intimate partner violence (IPV) and a strong predictor of intimate partner homicide (IPH). We compile NFS statute data, link them to homicide reports, 1990–2019, and estimate effects on IPH using a two-stage difference-in-differences estimator for staggered adoption and heterogeneous effects. NFS laws reduce IPH for ages 18–49, by 0.169 female-victim homicides per 100,000 women and 0.090 male-victim homicides per 100,000 men. We find no effects on IPH for ages 50–70 or on stranger-perpetrated homicides. Evidence from reported IPV incidents is suggestive of changes in reported incident classification and arrest patterns.

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Authors

D´ercio de Assis, Arpita Ghosh, Sonia Oreffice and Climent Quintana-Domeque

 

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Posted on Thursday 4th June 2026

ÀÖ²¥´«Ã½ Interdisciplinary Centre for Economic and Political Research

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Law and Social Sciences Building
University Park
ÀÖ²¥´«Ã½, NG7 2RD


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