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求原理The figure above shows the production possibilities front

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求原理
The figure above shows the production possibilities frontier for a country.A combination of
4 million gallons of milk and 4 million gallons of ice cream is
A) unattainable.
B) attainable and has full employment of all resources.
C) attainable and has less than full employment of all resources.
D) unattainable because it has less than full employment of all resources.
E) More information is needed to determine if the point is attainable or not.
求原理The figure above shows the production possibilities front
Production possibility frontier(PPF)生产可能性边界,也称生产可能性曲线, 生产可能性边界用来表示经济社会在既定资源和技术条件下所能生产的各种商品最大数量的组合,反映了资源稀缺性与选择性的经济学特征.
对于可能曲线内部的产品组合是可以通过资源要素的调整配置生产出来的,曲线上的产品组合则反映了要素最优利用时的所能达到的产品组合,而曲线外部的点则表明在现有条件下不能达到.(如果技术进步使生产可能曲线外移,就能提高最大产出,使以前不可能生产出来的产品数量可能成为现实)