If there had been no single currency, the northward capital flight would have depreciated peripheral currencies. Had the periphery borrowed in its own currency, that would have imposed losses on its foreign creditors while also boosting its export industry. Had peripheral economies instead borrowed in dollars or deutschmarks their debt burdens would have ballooned with depreciation, potentially pushing banks and sovereigns into default—but the depreciation boost to competitiveness would have remained. Either way, the depreciation of the currency would effectively shrink the value of wealth in the periphery.