The primary objective of the European Central Bank, set out in Article 127(1) of the Treaty on the Functioning of the European Union, is to maintain price stability within the Eurozone. However the EU Teaties do not specify exactly how the ECB should pursue this objective. The European Central Bank has ample discretion over the way it purses its price stability objective, as it can self-decide on the inflation target, and may also influence the way it measures the Harmonised Index of Consumer Prices (HICP).