Since to provide increased goods and services for more people does require technological advances, capital investment, and skilled labor, there must be a point beyond which an increase in population leads to a lowering of real income and a decline the level of well-being, Thus it came to be said that when a population should experience in the long run an ever-falling supply of goods and services, per capita, it was no longer of best size.

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Since to provide increased goods and services for more people does require technological advances, capital investment, and skilled labor, there must be a piont beyond which an increase in population leads to a lowering of real income and a decline the level of well-being, thus it came to be said that when a population should experience in the long run an ever-falling supply of goods and services, per capita, it was no longer of best size.

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Tributes to the decline in population there.

齡在上升国产精品黄色网站一级大片手机版免费看，這也促使了人口的下降一级做a爱黑人又硬又粗。

Decline：減少

但除了少數(shù)的幾個都心(urban center),多數(shù)的小城市,甚至僅離都心遠一點的地方,因失業(yè)率(unemployment)居高不下,居民必須離鄉(xiāng)找工作(in search of work),在人口(population)持續(xù)減少(decline)的情況下,整個德東