This paper analyzes the inflation dynamics of several countries belonging to the European Monetary Union and of the UK. We estimate the two main parameters driving the degree of persistence in inflation and its uncertainty using a dual long memory process. We also investigate the possible existence of heterogeneity in inflation dynamics across Euro area countries and examine the link between nominal uncertainty and macroeconomic performance measured by the inflation and output growth rates. Strong evidence is provided for the hypothesis that increased inflation raises nominal uncertainty in all countries. However, we find that uncertainty surrounding future inflation has a mixed impact on output growth. This result brings out an important asymmetry in the transmission mechanism of monetary policy in Europe in addition to the difference in the economic sizes of the countries. We also investigate whether one can find a correlation between central bank independence and inflation policy. Our conclusion is that the most independent central banks are in countries where inflation falls in response to increased uncertainty.
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