反映经济活动数量特征的具体数值或抽象的量相互之间的一种联系。这种联系可以用有经济意义的数字来表示，也可以用设定的数学符号来表示。经济活动既有质的内容又有量的表现。同质的量可以比较，不同质的量无法比较，但也会发生相互联系。经济数量关系在现实生活中是普遍存在的。
然而，寻求逃往美国的古巴人数量的剧增不仅源于人们对经济的绝望，还与有组织偷渡活动的增加有很大关系。
Yet the spike in the number of Cubans seeking to leave may have as much to do with an increase in organised smuggling as with economic despair.
离婚数量的上升可以归咎于经济下滑的毁灭性影响，许多家庭都疲于应对经济压力和失业问题导致的关系紧张。
The destructive impact of the economic downturn was blamed for the increase, as families struggled to cope with the tensions caused by money pressures and unemployment.
本文分析了水稻群体的个体质量分别与密度、产量和经济系数之间的数量关系；
This article analysis the quantitative relations between the single quality of a colony of rice plant and the density, output and economic coefficient.
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