The Reinhart/Rogoff paper provides worldwide evidence in favor of the view that high public debt can become a problem, and that countries should beware of putting themselves in a vulnerable position. But the ensuing debate sheds no light on the question of whether policymakers should disregard debt levels when their economies are depressed, as Krugman recommends.
莱/罗论文提供了世界范围内的数据支持高公债水平可能成为问题、国家应该警惕别让自己处于弱势的观点。但后续争论并没有就决策者是否应该在经济萧条时无视债务水平（如克鲁格曼所建议的那样）给出洞见。债务确实是一大隐患，世界上因此发生大灾难的例子数不胜数。