Efforts to reduce gun violence in the United States face formidable political and constitutional barriers. Legislation that would ban or broadly restrict firearms runs afoul of the Supreme Court's current interpretation of the Second Amendment. And gun rights advocates have joined a politically savvy firearm industry in a powerful coalition that stymies reform.Ian Ayres and Fredrick Vars suggest a new way forward. We can decrease the number of gun deaths, they argue, by empowering ...