Demand increased recently, leading to widespread shortages. An economics textbook would say ammo sellers should have raised prices rather than have empty shelves. But that hasn't happened.
Planet Money stories air each week on All Things Considered and Morning Edition. Here are all of our stories from those shows.
Poachers kill rhinos for their horns. Some economists think legalizing the horns could save the rhinos.
Over the past decade, 39,000 people have come forward to tell the government they've been hiding money overseas. Here's what they tell us about offshore money.
Like people in other countries that have gone through economic turmoil, people in Myanmar want U.S. dollars that look like they just rolled off the presses.
A young college grad asks an economist for advice.
Chinese parents don't trust Chinese baby formula, so they pay a premium to have it shipped in from around the world.
Candy makers and sugar farmers have been fighting for years in Congress. The sugar farmers are winning.
The government is about to change the way it accounts for the economic value of music and movies.
It's called a use tax. Accountants and tax lawyers are some of the only people who pay it.
Intangible drilling costs! De minimis fringe! And other essential corners of the tax code, explained.
It wasn't insurance or federal relief that brought Coney Island back to life. It was something much smaller and closer to home.
If you have a CD or book you don't want anymore, you can sell it. The law says that's perfectly legal. But what about an MP3 or an e-book? Can you legally resell your digital goods?
Instead, say it's from the "Outer Coastal Plain." (It's part of a plan to kick the state's reputation for making cheap wine.)
It's remarkably rare for leading research hospitals to reject new drugs because of cost.
When you add up all the country's banks, they don't even match the 30th largest bank in the U.S. But people all over the world have good reason to be freaked out over what's happened there this week.