The Diffusion of State Firearm Regulations

Nicholas Hemauer

State Politics and Policy Quarterly2026https://doi.org/10.1017/spq.2025.10016article
AJG 2
Weight
0.50

What the paper says

Drawing on the theory of policy diffusion, I analyze 129 regulatory firearm law provisions from 1991 to 2019 across the United States and examine the innovation and development of restrictive firearm policies. I control for the demographics, politics, and institutional characteristics of the states and hypothesize that public health concerns lead to the adoption of firearm regulations. I find support for my hypothesis: most novel, state firearm policy diffusion is dependent on state firearm suicide and homicide rates. Furthermore, I find that states are more likely to adopt policy if they are characterized by a large population, a large white population, high firearm ownership, a liberal government, or if their geographical neighbors are actively adopting firearm regulations. Firearm-related fatalities have risen dramatically, but a majority of states have adopted few policies to address this public health concern. My article highlights the state-level factors that produce a public policy response to this phenomenon.

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https://doi.org/https://doi.org/10.1017/spq.2025.10016

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@article{nicholas2026,
  title        = {{The Diffusion of State Firearm Regulations}},
  author       = {Nicholas Hemauer},
  journal      = {State Politics and Policy Quarterly},
  year         = {2026},
  doi          = {https://doi.org/https://doi.org/10.1017/spq.2025.10016},
}

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Evidence weight

0.50

Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40

F · citation impact0.50 × 0.4 = 0.20
M · momentum0.50 × 0.15 = 0.07
V · venue signal0.50 × 0.05 = 0.03
R · text relevance †0.50 × 0.4 = 0.20

† Text relevance is estimated at 0.50 on the detail page — for your query’s actual relevance score, open this paper from a search result.