More than four billion people―some 60 percent of humanity―live in debilitating poverty, on less than $5 per day. The standard narrative tells us this crisis is a natural phenomenon, having to do with things like climate and geography and culture. It tells us that all we have to do is give a bit of aid here and there to help poor countries up the development ladder. It insists that if poor countries would only adopt the right institutions and economic policies, they could overcome their disadvantages and join the ranks of the rich world.