Every language has its taboo words (which many people use all the time). But the list of forbidden words is always changing — and those changes tell us some surprising things about ourselves.

Delaware is beloved by corporations, bankruptcy lawyers, tax avoiders, and money launderers. Critics say the Delaware “franchise” is undemocratic and corrupt. Insiders say it’s wildly efficient. We say: they’re both right.

Many companies say they want to create more opportunities for Black Americans. One company is doing something concrete about it. We visit the South Side of Chicago to see how it’s working out.

Every year, Americans short the I.R.S. nearly half a trillion dollars. Most ideas to increase compliance are more stick than carrot — scary letters, audits, and penalties. But what if we gave taxpayers a chance to allocate how their money is spent, or even bribed them with a thank-you gift?

In this installment of the Freakonomics Radio Book Club, the economist Amy Finkelstein explains why insurance markets are broken and how to fix them. Also: why can’t you buy divorce insurance?

People who are good at their jobs routinely get promoted into bigger jobs they’re bad at. We explain why firms keep producing incompetent managers — and why that’s unlikely to change.

Most travelers want the cheapest flight they can find. Airlines, meanwhile, need to manage volatile fuel costs, a pricey workforce, and complex logistics. So how do they make money — and how did America’s grubbiest airport suddenly turn into a palace? (Part 3 of “Freakonomics Radio Takes to the Skies.”)

Thanks to decades of work by airlines and regulators, plane crashes are nearly a thing of the past. Can we do the same for cars? (Part 2 of “Freakonomics Radio Takes to the Skies.”)

It’s an unnatural activity that has become normal. You’re stuck in a metal tube with hundreds of strangers (and strange smells), defying gravity and racing through the sky.  But oh, the places you’ll go! We visit the world’s busiest airport to see how it all comes together. (Part 1 of “Freakonomics Radio Takes to the Skies.”) 

Adam Smith famously argued that specialization is the key to prosperity. In the N.F.L., the long snapper is proof of that argument. Here’s everything there is to know about a job that didn’t used to exist.