Thus, by now it is common for the legal acts that govern central banks to indicate that price stability is the overriding objective for monetary policy and to define it in numerical terms. Moreover, through the adoption of high levels of transparency, central banks have made it easier for outside observers to monitor their conduct of policy.
4.2  Regulations concerning the ECB  The Treaty on the Functioning of the European Union contains two Articles intended to promote monetary stability. This is achieved by removing any risk of pressure from national governments to force central banks to finance fiscal imbalances.