I'm too damn lazy to read the paper, so you may be right. But normally, we practice a division of labour. Theoreticians build models in the expectation that empiricists will (a) test them and (b) estimate key parameters. If these guys have said "we have the answer, this is what you should do" then maybe you are right.

I'm not saying either that this phenomenon never happens. I just think it's rather rare, especially among sensible and skilled economists. See also the great Bob Sugden's paper "Credible Worlds", which is available here at the moment.

https://www.researchgate.net/profile/Tony_Lawson2/publicatio...