Thank you. 6  BIS Review 130/2007
A banking union is necessary for the smooth functioning of a monetary union for the following three reasons: •  It breaks the link between banks and sovereigns by bringing banking supervision and crisis management to the federal level. With the banking union, banks will be considered as euro area institutions over and above their nationality; it will ensure that credit conditions in the euro area will not depend on where you are but on who you are, which is what should be expected of an efficient financial market. •  It allows re-integration of the European banking system. A supra-national supervisor is in fact better placed to assess the risks of cross-border activities and therefore to protect and encourage such activities; it is not subject to national biases that can lead to the temptation of economic introversion. It is therefore more credible and strengthens stability and confidence in the area;  •  Moreover, it restores the full efficacy of monetary policy. If our monetary policy impulses are not transmitted uniformly to all of the area’s countries because of the bank-sovereign link, it undermines the very foundation of Europe’s monetary union; remember that three quarters of the financing of the euro area’s economy consists of bank loans. By breaking this link, a banking union would restore the federal dimension of monetary policy. Today the first pillar of the banking union is being constructed: the Single Supervisory Mechanism.