Irrationality in Action

From the NYT's profile on Chris Christie:

When he was a federal prosecutor, Christie told the audience, he got to choose from about 100 health-insurance plans, ranging from cheap to quite expensive. But as soon as he became governor, the “benefits lady” told him he had only three state plans from which to choose, Goldilocks-style; one was great, one was modestly generous and one was rather miserly. And any of the three would cost him exactly 1.5 percent of his salary.

“ ‘You’re telling me,’ ” Christie said he told the woman, feigning befuddlement, “ ‘that no matter which one I pick, the good one or the O.K. one or the bad one, I’m going to pay 1½ percent of my salary?’ And she said, ‘Yes.’

“And I said, ‘Then everyone picks the really good one, right?’ And she said, ‘Ninety-six percent of state employees pick the really good one.’

Who are that four percent? Seriously, this is a huge issue for any rational actor model. Forget twenty dollar bills on the sidewalk, picking the more generous health plan in this context requires absolutely no effort at all.