人口抚养比率的供给与需求的变化,导致了经济增长率的需求变化,人口抚养比提高,抚养负担加重,导致净收入减少,进而引起消费需求降低,萎缩的消费需求制约了储蓄向投资转化,缺乏投资需求就会导致有效需求不足。为了分析人口对经济增长的实际影响,本文采用了VAR模型来进行经济分析,并讨论和研究的抚养比和经济发展之间关系,揭示了人口抚养比作用于经济增长的实际程度,为长期经济增长政策的制定提供了理论支持。 Changes in the supply and demand of population support led to changes in the demand for economic growth, increased dependency ratio, increased dependency burden, resulting in a decrease in net income, which in turn led to a decrease in consumer demand. The declining consumption demand constrained the conversion of savings to investment, Lack of investment demand leads to insufficient effective demand. In order to analyze the actual impact of population on economic growth, this paper uses the VAR model for economic analysis, and discusses and studies the relationship between dependency ratio and economic development, reveals the actual degree of population dependency ratio on economic growth and long-term economy The formulation of growth policy provides theoretical support.