A report from the Joyce Foundation identifies new avenues of inquiry for research on reducing gun deaths and injuries in the United States. The report, The Next 100 Questions: A Research Agenda for Ending Gun Violence (53 pages, PDF), outlines key questions in ten dimensions of gun violence: firearm suicides, community-based gun violence, intimate partner violence, shootings by law enforcement, mass shootings, unintentional shootings, impacts of lawful gun ownership, gun access during high-risk periods, racial disparities and the criminal justice system, and firearm-related technology. Questions include: "What impact do laws regulating legal gun purchases — e.g. requiring background checks or permit-to-purchase for all gun sales, or imposing waiting periods — have on gun suicide?"; "How are shootings by law enforcement adjudicated within their departments and the broader criminal justice system?"; and "How has underinvestment in basic public services like education and housing in communities of color contributed to violence, and could additional investment reduce it?"