The problem of whether the single currency system that is the euro will continue to exist may be said to hinge on whether a consensus is formed on a project duly recognized since the early days of the system’s establishment, i.e.
finding a way for members engaging in differentiated economic activities to appropriately share and shoulder the different benefits and costs to each created in the course of their all using a single currency. A pressing issue linked to this is the problem of whether all advanced countries’ debt problems will be solved and their fiscal policy soundness ultimately achieved.