While a banking union for Europe has been discussed by economists since even before the 2007 crisis, the issue has now moved up to the top of the eurozone agenda. But what kind of banking union? For whom? Financed how? And managed by whom? These questions are explored in a new Vox eBook comprisings 15 papers on the topic by leading economists from both sides of the Atlantic. CEPS Director Daniel Gros contributed a chapter entitled “The Single European Market in Banking in decline – ECB to the rescue?” The book edited by Thorsten Beck, Professor of Economics and Chairman of the European Banking Center at Tilburg University, and published by VoxEU.