United Airlines says it will never again use police to forcibly remove passengers from overfull flights. But this week's public relations disaster for United highlights a problem that airlines face every day: how to entice people to give up their seats voluntarily.
NPR reached out to some of the top thinkers in the world of "game theory" who say they think the industry could be doing a much better job. Here are some solutions they offered.
Treat the problem as a game.