The case for a banking union for the euro area is both immediate and longer term.
Moving responsibility for potential financial support and bank supervision to a shared level can reduce fragmentation of financial markets, stem deposit flight, and weaken the vicious loop of rising sovereign and bank borrowing costs. In steady state, a single framework should bring a uniformly high standard of confidence and oversight, reduce national distortions, and mitigate the buildup of concentrated risk that compromises systemic stability. "Time is of the essence," the paper argues.