Multiple economists have studied the fast-food industry to answer the question. They've found very different answers.
Planet Money stories air each week on All Things Considered and Morning Edition. Here are all of our stories from those shows.
In La Crosse, Wisconsin, almost everyone plans for their death. Not coincidentally, La Crosse spends less on end-of-life care than any other place in the country.
Until the Great Depression, nobody talked about "the economy." In a sense, it hadn't been invented yet.
The Jones Act, which dates back to World War I, is part of the reason New Jersey ran short of salt this winter.
Doctors and governments have struggled to cope with a scarcity of organs available for transplant. One solution? DMV clerks. When clerks ask in person if people want to be donors, many more say yes.
"We're investing on average about $90,000 in the education of each student," says a university official. Where exactly is all that money going?
A reporter shadowed eight young people during their first two years on Wall Street, when the bailouts were still fresh and anti-Wall Street sentiments were running high.
Spirit Airlines is one of America's fastest-growing airlines. It's also among the least popular airlines in America. How can one airline be both things at once?
Two cousins from Mexico have a dream to bring jobs to their hometown. With no experience and very little funding, they've launched their own high end brand of mezcal.
NPR's Lisa Chow was in the car for about an hour, rolling around Manhattan in the middle of a snowstorm. She got the car through Uber, the new service that charges more when demand spikes.