The mathematical models plug rational behavior into their equations, but only some of the psychological quirks that behavioral economists increasingly catalog.

But tonight I didn't have any concentration to spare for her psychological quirks.

An odd psychological quirk, and a need that would go unfulfilled.

Well, her psychological quirks were no problems of mine, thank God.

Do even highly trained judges suffer from the sort of psychological quirks that distort decision-making?

Or perhaps it's just a psychological quirk of the kitchen.

Look," Deputy Thorsen said, "let's not go off into left field trying to figure out the emotional and psychological quirks of this woman.

And others said that the whole complex was no more than a psychological quirk, a substitution.

Some strange psychological quirk keeps them from carrying through.