Inflation convergence over time: Sector-level evidence within Europe

This paper investigates inflation convergence among European countries by using sector-level data for the period between 1997:M1 and 2019:M12. Panel unit root tests at the country-sector level are conducted by using moving windows, which are useful for analyzing changes in inflation convergence and the corresponding speed of convergence over time. The results suggest that there is evidence for inflation convergence for the majority of sectors within Europe, although certain countries have experienced disruptions, especially during the 2008 financial crisis. Regarding the speed of inflation convergence, the average half-life across European countries decreased from about 15 months to about 8 months during the sample period. Important sector-level implications follow for European Union (EU) candidate countries and non-euro EU member countries in regard to the Maastricht Treaty.