The ability to get into any home, car, or safe can be lucrative — but fixing locks is a tough... more

Those tiny treats that predict your future may come free at the end of a Chinese meal, but they’re big... more

When you hit the slopes, you might not be thinking about water rights, controlled avalanches, and liability insurance — but... more

We reach for it twice a day — without thinking about the decades of research and engineering that went into... more

When a Fortune 500 company needs a new leader, it turns to a well-connected headhunter who assesses candidates with psychological... more

Security guards make malls feel safer, but what can they do when there’s trouble? Zachary Crockett observes and reports.

How do TV producers decide how much money to give away? A little psychology and a lot of math. Zachary... more

A fast-food burger has to taste the same — and cost the same — thousands of times a day at... more

American golfers lose 300 million balls a year — and all those bad swings are someone else’s business opportunity. Zachary... more

Before a guide dog can help a blind person navigate the world, it has to pass a series of tests,... more