The latest Global Peace Index shows the world has become less peaceful in the last year. Liz Ford asks if the rankings should prompt donor governments to rethink aid strategies. The latest figures show homicide rates and violent crime have increased around the world. Ford says, “In a sense, the GPI make a case for peace – putting a monetary value on peace in terms of business growth and economic development. The index authors estimate that the total economic impact of an end to violence could have been US$28.2tr between 2006 and 2009.”