Domestic violence costs the world 25 times more than war and terrorism, according to research conducted by James Fearon of Stanford University and Anke Hoeffler of Oxford University on behalf of the Copenhagen Consensus Center.
By looking at different kinds of violence, Fearon and Hoeffler find that the global costs of conflict – including the economic toll of deaths from wars and terrorism, refugee-related outlays, and general pecuniary damage – add up to around 0.2% of global GDP each year.