人口增长率 人口增长率
Population growth rate
本文在Solow模型框架中引入随时间变动人口增长率函数，并假定人口增长率最终趋于零，证明该模型的解是渐近稳定的，收敛于零人口增长率的经典Solow模型的解。
In this paper, a function of a variable population growth rate is integrated into theclassical Solow model.
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大多数新增人口将来自非洲，非洲人口年增长率为2.3%，是亚洲人口增长率1%的两倍多。
Much of that growth will come from Africa, where the population is growing at2.3percent a year& more than double Asia's1 percent growth rate.
