A comment from an Instaputz post about Public Choice Theory, the Megan McArdle version…
Public choice theory…(is) not really part of economics. It’s basically just right-wing prejudice turned into a theory – the entire intellectual content is in the initial assumption “We assume that all public officials are venial and self-seeking”, and thence to derive the entire right-wing worldview.
…reminds me of my favorite joke to tell among academics.
A chemist, a physicist, and an economist are trapped on a desert island. They have canned food but no tools. To solve the problem, the physicist proposes using sticks and a rock to create a lever and pop the lids off the cans. The chemist suggests heating the cans so the contents will expand and burst them open. The economist criticizes both and says he has a far better plan. He begins, "OK, now assume a can opener…"