Now Playing: 12-04-12 Marketplace

Shoplifting could cost retailers nearly $9 billion this holiday season. The strikes at the ports of Los Angeles and Long Beach are entering their second week, but some businesses are actually benefiting from the stoppage. The future of agriculture might be in the hands of robots. Employers are requiring degrees for jobs that didn’t require a diploma just five years ago. We ask a mathematician what it takes to make elevators run smoothly. The series Black Gold Boom provides a look into the life of a North Dakotan roughnecker. And we learn about the history of boredom and how boredom affects our daily lives.