Dylan Matthews interviews economist Chris Blattman (@cblatts) about his new book Why We Fight, which examines the root causes of war and what can be done to stop it. In a wide-ranging discussion that touches on conflict all over the world, Dylan and Chris discuss the role of the state, commonalities among historical conflicts, and the game theory of war. References: Chris Blattman’s book, Why We Fight Chris’s research work Research on how drug gangs govern in Colombia How therapy can reduce conflict Using summer vacations to study peace deal mediators The influence of royal mounties in the 19th century may make Canadian hockey less violent now Blattman on Ukraine before the war Civil war predictions in the US Hosts: Dylan Matthews (@dylanmatt), senior correspondent, Vox Credits: Sofi LaLonde, producer and engineer Libby Nelson, editorial adviser Amber Hall, deputy editorial director of talk podcasts Sign up for The Weeds newsletter each Friday: vox.com/weedsletter  Want to support The Weeds? Please consider making a donation to Vox: bit.ly/givepodcasts Learn more about your ad choices. Visit podcastchoices.com/adchoices

Dylan Matthews interviews economist Chris Blattman (@cblatts) about his new book Why We Fight, which examines the root causes of war and what can be done to stop it. In a wide-ranging discussion that touches on conflict all over the world, Dylan and Chris discuss the role of the state, commonalities among historical conflicts, and the game theory of war. References: Chris Blattman’s book, Why We Fight Chris’s research work Research on how drug gangs govern in Colombia How therapy can reduce conflict Using summer vacations to study peace deal mediators The influence of royal mounties in the 19th century may make Canadian hockey less violent now Blattman on Ukraine before the war Civil war predictions in the US Hosts: Dylan Matthews (@dylanmatt), senior correspondent, Vox Credits: Sofi LaLonde, producer and engineer Libby Nelson, editorial adviser Amber Hall, deputy editorial director of talk podcasts Sign up for The Weeds newsletter each Friday: vox.com/weedsletter  Want to support The Weeds? Please consider making a donation to Vox: bit.ly/givepodcasts Learn more about your ad choices. Visit podcastchoices.com/adchoices