Universal Background Checks, Permit Requirements, and Firearm Homicide Rates
Michael Siegel, 2024 · JAMA Network Open
State laws requiring a permit to purchase any firearm were associated with an 18.3% reduction in age-adjusted firearm homicide rates across 48 US states.
Estimativa · Age-adjusted firearm homicide rate, percentage change
-18,3 [-32,0; -1,90]
percentage change
- Desenho
- Diferenças em diferenças. Prais-Winsten difference-in-differences panel regression with state and year fixed effects
- População
- 48 US states, 1976–2022
- Amostra
- 2.256 · state-year observations across 48 US states
Onde está o número
Table 2.; Table 2, row 'Required permit for purchase of all firearms', column 'Firearm'
Required permit for purchase of all firearms | −15.4 (−28.5 to −0.01) | −18.3 (−32.0 to −1.9) | −4.5 (−14.4 to 6.6)
Contexto
What changed: Implementation of state laws mandating a permit for purchasing any firearm. Comparison: Difference-in-differences model comparing states with and without permit-to-purchase laws over time, controlling for state and year fixed effects, concurrent gun laws, and state socio-demographics. Limits: Observational panel data cannot rule out reverse causality or unobserved trends.
Caminho no grafo
- FamíliaRegras e regulação
- TipoLicenciamento e autorizações
- ResultadoCriminalidade
- EixoPaz e justiça
MAGI só cita evidência deste instrumento
Lugares do estudo
- United States · País · US
- Licença
- CC-BY
- Revisão
- Extraído por máquina, não revisadoExtraído por: gemini-3.8-flash, 2026-10-23