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由于偿债率、债务依存度和债务率等不能对国债规模做出科学解释,全球公共经济学界开始运用现代数学工具,将关注和研究的重点转向了对国债规模的微观解释。家庭账户的国债自然负债空间,是国家负债规模的重要微观基础,家庭账户下代际模型的研究模式,是在微观层面解释国债规模测量的主流路径;可能存在的后续研究空间将重点集中在家庭负担和收益预期对国家负债规模的影响,同时不同家庭或家庭成员间不同的预期和行为倾向研究,也将是新的研究热点。
Due to the fact that the debt service ratio, the debt dependence and the debt ratio can not make a scientific explanation for the size of the national debt, the global public economics community has begun to use modern mathematical tools to shift the focus and study to the micro-interpretation of the size of the national debt. The natural debt space of national debt of household accounts is an important microcosmic foundation of the national debt scale. The research model of the family account under the intergenerational model is the mainstream path to explain the measurement of the national debt scale at the micro level. The possible follow-up research space will focus on the family The impact of burden and income expectation on the scale of national debt, as well as different expectations and behavioral tendencies among different family or family members, will also be a new research hotspot.