This is a market on a year-to-year inflation, as measured by the Eurostat (HICP), from October 2020 to October 2021. This market will resolve to “Yes” if the European Union annual inflation in October 2021 is 4.3 percent or more and "No" otherwise. The resolution source for this market will be the Eurostat, the statistical office of the European Union: https://ec.europa.eu/eurostat/web/products-euro-indicators. The next release of HICP inflation rate with full data for October 2021 is scheduled for 17 November 2021. ----------------------------------- In the euro area, the Harmonised Index of Consumer Prices (HICP) is used to measure consumer price inflation. That means the change over time in the prices of consumer goods and services purchased by euro area households. It is “harmonised” because all the countries in the European Union follow the same methodology. This ensures that the data for one country can be compared with the data for another. Note that this market is about the inflation for all European Union Member States, not only the Euro zone (states using €). Inflation dashboard for the Euro zone can be viewed here: https://www.ecb.europa.eu/stats/macroeconomic_and_sectoral/hicp/html/index.en.html