There is greater price transparency and lower inflation, as well as increased competition between companies in the Eurozone. There is also a merger of financial markets and a stronger euro. Finally, there will be a drop in interest rates, a consequence of the above and more stable currency which facilitates economic growth and a drop in inflation. The euro brings the most notable differences and helps equalize prices across borders. In conclusion, we can say that the Euro, as a single currency, has other advantages, such as: lower transaction costs resulting from the exchange, removing the uncertainty associated with the exchange and, on the other hand, encouraging people to travel and buy in other countries. country. The euro, the single currency of the Member States of the European Union, constitutes an important economic change. Although some of its member countries do not function as they should, examples include countries like Spain and Greece. Elsewhere we can give the example of Germany using the Euro and how it is thriving.