In the real world, we rarely encounter a situation that can be completely modeled with an analytical (rational) model, so the correct answer to the model cannot purport to be the definitively correct answer to the real world situation.

FORBES: Meeting the Big Data challenge: DON'T be objective

However, this body of work is best understood as a set of exceptions that modifies but leaves intact the canonical model of rational choice, not least since it is irrational to suppose that people in general behave irrationally.

ECONOMIST: Can you be too rich?

It challenges our traditional reliance on a model of human behavior that presupposes a rational person capable of being deterred by the threat of punishment.

NPR: Rules Should Govern Torture, Dershowitz Says

Also included is one model for which we have difficulty finding a reason for any rational motorist to purchase, aside from it being easy to park, the diminutive two-seat Smart ForTwo.

FORBES: New Cars To Avoid: Jeep Wrangler, Nissan Xterra And More

It is tempting to want the Internet rebuilt to look more like a highly rational, centrally planned version of an airline system's hub-and-spoke model: big users near big content, as many direct routes as possible.

FORBES: Weaving The Perfect Net