NEW CLASSICAL MACROECONOMIC THEORY AND FISCAL RULES: SOME METHODOLOGICAL PROBLEMS

This paper evaluates the theoretical basis of New ClassicalMacroeconomics (NCM) in general, and in particular the basisof one of NCM's main policy conclusions, namely fiscal rules.We analyse NCM in terms of its assumptions of market clearingand rational expectations formations and show how its call forfiscal rules is derived. We argue that NCM is describing a staticworld with no uncertainty. Indeed, we argue that fixed fiscalrules can only make sense in such a world. In view of NCM'sinstrumentalist position, its predictions are then discussedin light of the empirical evidence. The results are discouragingfor proponents of NCM. Our conclusion is that NCM has low explanatoryand predictive power and, as such, does not provide a strongbasis for determining economic policy.