Inflation Volatility in Small and Large Advanced Open Economies

Inflation volatility is clearly important for structural analysis, forecasting and policy purposes, yet it is often overlooked in the literature. This paper compares inflation volatility among advanced open economies with inflation targeting monetary policy frameworks. The results of the empirical exercise using a panel dataset suggest that, over the last two decades, the volatility of inflation was similar among countries, even when controlling for monetary policy activity and other factors. In particular, there is only a weak and statistically not significant correlation between inflation volatility and country size. Also, point-targeting central banks (in contrast with range-targeters) and commodity exporters are only weakly associated with higher inflation swings. Equivalent conclusions are reached when decomposing inflation volatility in a transitory and a permanent component. I thus argue that small and large advanced open economies are exposed to global fluctuations to a comparable extent. A range of robustness tests confirm that the results are not sensitive to methodological choices and the relationship was not altered by the Great Recession or the low interest rate environment