人口老龄化是当前和今后很长时间内城市人口年龄结构不可逆转的变动趋势 ,该趋势必然会对城市未来经济产生重大持续影响.弄清人口老龄化对城市经济增长的作用机理和影响效应是必要的也是重要的.在借鉴前人研究的基础上 ,以上海为例 ,以中微观的数据为基础 ,通过"封闭城市"和"开放城市"的全新视角 ,借助索罗增长模型展开讨论 ,分析了人口老龄化对城市经济增长的影响.重点揭示了开放城市系统下劳动力流动所产生的老龄化"稀释效应" ,持续高的"R&D"投入对老龄化产生负影响的遏制作用等.%The aging of the population is an irreversible trend of the age composition of population in urban area for a long time in the future ,and this trend will have a significant influence on the development of urban economy in the future .It is both important and indispensable to know the influence and mechanism of aging population to the growth of urban economy .On the basis of the predecessor's studies ,taking Shanghai as an example ,based on medium-micro data ,the paper analyzed the influences of aging population to the development of urban economy , with the help of Solow growth model through a new perspective of "closed city"and"open city" .It mainly shows aging "dilution effects"caused by labor flows to city under "open city system" ,and shows "restraint effects" of continuing high "R&D"to"negative influence"caused by the aging .
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