How to Save $1 Billion Without Even Trying

Season 5, Episode 20 

On this week's episode of Freakonomics Radio: Doctors, chefs, and other experts are much more likely than the rest of us to buy store-brand products. What do they know that we don’t? And if we all did like they do, how much fatter might our wallets be?

Then, imagine a fantasy world that’s exactly as the world is today except that two things are missing: alcohol and marijuana. And then imagine that tomorrow, both of them are discovered. What happens now? How are each of them used – and, perhaps more importantly, regulated? How would we weigh the relative benefits and costs of alcohol versus marijuana?