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But that isn't what Wolfe means anyway, since Milton Friedman is about as non-marginal as it is possible to be.
Wolfe apparently likes to write about things he is ignorant about.
I don't know what his reputation is in his field, but in mine (philosophy) he is considered a joke among the few people than even know who he is.
One thing that often gets neglected in talk of behavioral economics or rational actors is just how flexible the rational actor model is. It barely says anything!
It says that "humans act so as to maximize Utility", where utility is undefined.
This is not really a model, it is the outline of a research program. It is something like saying that human behavior is reducible to an algorithm.
For any given rational actor model, a new school of research can always come along and say "there are systematic discrepancies between this model and teh behavior of real humans!" But the model is very flexible. Any systematic discrepancies can be explained by altering the model. Then the discrepancies go away.
So that's how you get a good model of human action -- bit by bit. Is this how you get a good model of normative rules? No. Ethics is a whole different ballgame.
It is totally arbitrary to hold up an algorithm that does not represent human action and say "humans should be like this!!" You need to have an independent motivation for saying this.
What an interesting term of phrase. What is it meant to imply?