Now imagine a world with open CBO models. Every bill would still have a score, yes — that’s mandated by law — but then every score would have a dozen think-tanks slinging mud at the assumptions, and proclaiming that their iteration of the CBO model was producing the true results.
She says this as if it would be a bad thing. My own view is that there should not be a definitive CBO score. The CBO does not own Truth. The most important truth about policy is that there is no Truth. Economic theories are contestable. Treating one model as Truth biases policy makers toward intervention, because they are over-confident in the results.
I make this point in a forthcoming essay. Not sure when the essay will appear.