规模报酬变化要求投入必须同比例变动，相比而言，规模经济只要求比较规模的扩大与单位产品平均成本间的关系。

Returns to scale changes must change with proportion to input, however, the economies of scale only requires the relation among the enlargement of the comparative scale and unit cost.

youdao

规模报酬变化要求投入必须同比例变动，相比而言，规模经济只要求比较规模的扩大与单位产品平均成本间的关系。

Returns to scale changes must change with proportion to input, however, the economies of scale only requires the relation among the enlargement of the comparative scale and unit cost.

youdao