Autonomous interest-rate determination would penalize banks that have borrowed in southern Europe from their national central banks. Meanwhile, the German Bundesbank would have lower rates, but southern European banks would be unlikely to have access to that credit for use in their own markets.
德国经济部长罗斯勒（Philipp Rösler）给出了一个诱人的建议：欧洲中央银行体系成员应该自行确定利率（不过，有意思的是，他是站在明确的党派政客的立场，而不是政府部长立场上作此建议的）。自主决定利率将惩罚在南欧从当地央行借款的银行。与此同时，德国央行将降低利率，但南欧银行不可能获得此类信用用于本国市场。