In a model where seignorage provides the financing instrument for the government’s budget, public spending volatility has an adverse effect on long-run growth. This negative relationship arises because the incidence of volatility in this type of public policy is responsible for higher average money growth, thus induces individuals to devote less time/effort towards capital accumulation. Another implication of the model is that policy variability provides a possible argument behind the positive correlation between inflation and inflation variability.
This is a working paper. It was also published at: http://ideas.repec.org/p/lbo/lbowps/2007_18.html.