But if the paper is a direct calculation in the framework of a standard model, and that the calculation is correct, then whoever made it should not change the view that it is, indeed, correct.

"Proper" peer review would require replicating such calculations. Nobody does that. Especially if the paper involves a DSGE model. Or, in the case of a paper presenting the result of statistical analysis, the raw data are not provided. Remember the case of Reinhart' and Rogoff's "evidence" supporting austerity?

A society committed to the notion that government is always bad will have bad government. And it doesn't have to be that way. — Paul Krugman