There is only one, single monetary policy for the euro area as a whole. Therefore, the ECB should develop into a truly European institution. This is a process that will inevitably take some time, but my feeling is that we are already making good progress. The execution of monetary policy is to a great extent decentralised.
It is in large part carried out by the NCBs. The ECB and the 11 NCBs together are referred to as the Eurosystem. If we refer to the ECB and the 15 NCBs of all EU Member States, we speak of the European System of Central Banks (ESCB).