Are we describing running the same formulae on the same numbers as 'replicating' these days? Did real economists always consider these results provisional/dubi

Are we describing running the same formulae on the same numbers as 'replicating' these days? Did real economists always consider these results provisional/dubious/bogus and the fact that they were used as the basis of policy is to the shame of our policy makers and press, or is the field of economics so messed up that research based on schoolboy errors can become the accepted view within the field?