规模经济也叫生产力规模 ,是研究选择生产力诸要素（主要是指实体性因素）在一定空间范围内量的最优聚集程度。在西方经济学里 ,规模经济主要用来研究企业经济 ,但作为生产力经济学的重要范畴之一 ,规模经济的含义则更为广泛 ,包括从宏观到微观的能获得经济利益的各个层次的经 The scale economy is also called the scale of productive forces. It is the optimal degree of aggregation in studying the factors of selecting productivity (mainly refers to the substantive factors) within a certain spatial range. In Western economics, economies of scale are mainly used to study the economy of enterprises. However, as one of the important categories of productivity economics, the meaning of economies of scale is more extensive, ranging from macro to micro levels of economic benefit