.

[Citizen Hats]

For the most part, Economists don't actually think in terms of homo-economicus, though they might employ that logic from time to time.  The Health Care- Car market example is somewhat of a head scratcher for the reason that even some one with a modicum of economic knowledge can tear that one down. 

[Citizen Hats]

Finding environments in which utility maximization cannot describe behavior is pretty damn difficult (I tell you this as someone who is working on precisely that for living). Not because "utility maximization" is such a great theory, but because it is not really much of a theory: it is more of a language, in which you can express pretty much anything.

Might just be the most well put description of the concept

[Citizen Hats]

Sometimes I forget that people don't usually think on the margin in conversation