Robert Smith

It's been 30 years since Trading Places came out. And, to be honest, I never really understood what happened at the end of that movie. Sure, Louis Winthorpe (Dan Aykroyd) and Billy Ray Valentine (Eddie Murphy) get rich, and the Duke brothers lose all their money. But what actually happens? How does it work?

I recently talked to Tom Peronis, a guy who has spent years trading OJ options. He walked me through every step of Winthorpe and Valentine's plan.

1. Give The Duke Brothers Bad Information

When you arrive in Myanmar, you can see how eager the people are to do business. At the airport in Yangon, new signs in English welcome tourists. A guy in a booth offers to rent me a local cellphone — and he's glad to take U.S. dollars. But when I pull out my money, he shakes his head.

"I'm sorry," he says.

He points to the crease mark in the middle of the $20 bill. No creases allowed.

Halfway between the New Jersey Turnpike and the Atlantic City casinos is a little slice of France: Amalthea Cellars. There's an old farmhouse, and a field full of grapevines.

Lou Caracciolo, who founded Amalthea, is walking through the field. "Here's something I put in the ground in 1976," he says. "You have to have a feel for it, and after 30 years I have a pretty good feel for it."

Caracciolo calls himself a hopeless romantic. And, really, you have to be a romantic to try to make a $33 bottle of cabernet sauvignon blend in New Jersey.

The Buckeye Tool Expo in Dalton, Ohio, is held in a massive hall filled with bearded men in black hats and women in white bonnets. A few horses and buggies are tied up outside.

The Amish have chosen to forgo many of the delights of the modern world, but they still need to drill, sand and cut wood. This trade expo shows off all the loopholes that let the Amish get their hands on power tools.

People around the world want the same thing from their doctors. First, do no harm. Second, take a look at this weird bump and tell me if I should get worried.

The job is basically the same in many countries around the world. But the pay is wildly different. The median salary for U.S. doctors is about $250,000 a year. In Western Europe, it's less than half that. In developing countries, the salaries are even lower.

The Chinese workers who assemble iPhones, iPads and tons of other electronic devices may soon be able to elect their own union representatives, the FT reports.

Labor unions technically do exist in Chinese factories, but they're typically controlled by management and the government. So a union run by democratic vote of the workers would be a huge shift.

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From NPR News, this is ALL THINGS CONSIDERED. I'm Robert Siegel.

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And I'm Audie Cornish.

We begin this hour with the tragedy in Connecticut. This morning, around nine o'clock, a young man walked into the Sandy Hook Elementary School in Newtown, Connecticut and began shooting. Federal law enforcement officials now tell NPR the gunman was 20-year-old Adam Lanza of Newtown.

If a kid does something bad and you want to discipline him — give him a timeout, say, or take away a toy — there are some basic principles that seem to work.

The punishment needs to happen quickly after the bad behavior. And it needs to be significant enough to get noticed. Those rules aren't just for kids; they need to hold true for any type of punishment to be effective.

But if you're a federal regulator punishing a bank, it can be tough to be swift enough and to levee a penalty that's severe enough to make a difference.