That is to say , IPC is the multiple caus - ing change of population dynamic trend.

控制指数值即为引起种群数量发展趋势发生改变的倍数.

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The first factor is the change of population structure and factor is the change of income.

二是间接需求,主要取决于人口的结构变动和居民收入的变动.

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More eye - catching, the periodical change of population also has influence on the volatility of asset price.

更加引人关注的是, 统计上发现,人口的周期性变化对资产价格的波动也具有一定作用.

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