The change in a country’s debt burden reflects the size of its primary budget balance (the balance minus interest payments) as a share of GDP, as well as the difference between its borrowing costs and its GDP growth rate. When the difference between borrowing costs and growth becomes too large, the primary budget surpluses required to stop debt from increasing become impossible to achieve.
一国债务负担的挑战反映了其基本预算余额（预算余额减去利息支出）占GDP的比重规模以及其借贷成本与其GDP增长率之差。当借贷成本与增长率之差过大时，阻止债务增加所要求的预算盈余就会变得太高而不可能达到。事实上，在未来两年中，南欧增长率预期将接近于零甚至为负，从较长时间看也不会超过2—3%。