The Cobra Effect - Freakonomic Special
12/19/2013 - If you want to get rid of a nasty invasive pest, it might seem sensible to offer a bounty. But as we'll hear in this episode of Freakonomics Radio, bounties can backfire. We look at bounties on snakes in Delhi, rats in Hanoi, and feral pigs in Fort Benning, Georgia. In each case, bounty seekers came up with creative ways to maximize their payoff - and pest populations grew. Host Stephen Dubner talks to Steve Levitt about how incentives don't always work out the way you'd expect.