More guns, less crime? A dynamical systems approach

作者：

Highlights：

• The prevalence of gun-related crimes is described by differential equations.

• Illegally and legally-obtained guns are taken into consideration.

• From this model, two policies of gun control are analytically examined.

• Strong gun-control minimizes the number of guns, but violent crime remains endemic.

• Weak gun-control eradicates crime only if the number of legal guns is maximum.

摘要

•The prevalence of gun-related crimes is described by differential equations.•Illegally and legally-obtained guns are taken into consideration.•From this model, two policies of gun control are analytically examined.•Strong gun-control minimizes the number of guns, but violent crime remains endemic.•Weak gun-control eradicates crime only if the number of legal guns is maximum.

论文关键词：Dynamical system,Gun control,Lyapunov stability,Public safety

论文评审过程：Received 8 July 2019, Revised 11 September 2019, Accepted 30 September 2019, Available online 22 November 2019, Version of Record 2 December 2019.

论文官网地址：https://doi.org/10.1016/j.amc.2019.124804