Firearm Legislation and Firearm Violence Across Space and Time: A Comprehensive Data Collection Effort [open pdf - 774KB]
From the Purpose: "This project's main purpose is to facilitate research that will further understanding on firearm legislation and its impacts on violence. We do so through a comprehensive data collection effort that includes information on firearm legislation implemented across U.S. states over time in combination with multiple measures of firearm-related violence and injury. Moreover, to better understand the conditions under which firearm legislation is more or less effective we incorporate information on state and county-level indicators of firearm prevalence, firearm shops, enforcement of firearm laws, social norms about firearm ownership, demographics on racial and economic inequality, and access to healthcare like emergency care and mental health services. Incorporation of these county characteristics allows for examination of whether the effectiveness of state-level firearm legislation depends upon particular characteristics of counties. These data also allow for leveraging of change in both firearm legislation and county characteristics over time to better understand how firearm legislation emerges and impacts firearm violence."
National Criminal Justice Reference Service: https://www.ncjrs.gov/