"When the Monetary Union was founded in 1992, it was a common understanding among economists that a monetary union of states of very different economic strength could function only if either economic policy was communalized as well or the strong states were willing to pay for the debts of the weaker states. Politicians ignored this warning. The financial crisis showed that the economic experts were right. The Monetary Union deprives the states of a number of fiscal instruments such as revaluation or devaluation of the currency. This contributed to the crisis."