Recession Proof
  
Drug companies. (Legal ones. Well, actually...illegal ones, too.) Cable companies. Grocery stores. All the things people simply can't live without, almost literally.
Recession is sequential declines in GDP growth. The economy is sucking. People don't want to spend. They save their extra dough. They're afraid. But that headache medicine? Yeah, they'd rather do without the new winter jacket and be able to have the pills. And the downloading of, um, art films from the internet? Yeah. Teens would have that ahead of ramen noodles. Those are almost guaranteed recession-proof industries.