The article analyzes if Central and Eastern European countries, like Croatia, are ready to adopt the euro currency by studying the correlation of economic shocks between them and the Eurozone. By comparing data on demand and supply shocks, it was found that Croatia is not yet prepared for the common monetary policy with the Eurozone, while countries like Slovenia and Latvia are closer to being ready. This information is crucial for countries considering joining the Eurozone, as it shows how well their economy aligns with the Eurozone's business cycles.