If Germany had not been in the euro zone, the Deutsche Mark would have appreciated considerably
If Germany had not been in the euro zone, due to: Germany's huge excess savings over investment and huge external surplus and assets; The strong global demand for risk-free bonds, the Deutsche Mark would have appreciated markedly, which is something the Germans that are hostile to the euro zone should think about. Currently, this potential strength of the Deutsche Mark is not turning into strength for the euro, given the concerns regarding some other euro-zone countries: weak corporate modernisation and low potential growth, fiscal deficits, political problems, etc.