The production possibility frontier at different horizons is in different places.

不同层面的生产可能性曲线,会有不同的位置

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If there were no credit markets, everyone would have to be on the production possibility frontier; there would be no other choice.

如果没有信贷市场,每个人的收入水平都会落在PPF曲线上,别无选择

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Irving Fisher also drew on the curve a production possibility frontier for society, which he made downward-curved.

欧文·费雪还画了一条曲线,代表了社会的生产可能性边界PPF,这是一条向下的曲线

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But if we have credit markets, then people can individually choose to be off the production possibility frontier and at a higher level of consumption than otherwise would.

但如果存在信贷市场,那么个人可以选择超越,PPF曲线的范围,达到比没有信贷市场时更高的消费水平

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