Regulation

Teens reject college and start a rental car business so successful that San Francisco sued them for unfair business practices.

"So positive were they that they had happened on a better business model than Hertz or Avis, that they turned their backs, respectively, on Harvard, Princeton and MIT — the three institutions to which they had gained (or been offered) admission."
"Doug Yakel, public information officer for SFO, tells ABC News that FlightCar refuses to play by the rules that govern other rental car companies. It doesn’t pay the same fees, he says, and it doesn’t abide by the same regulations…"

That sounds like a positive to me. And we wonder why our economy is in the tank.