规模收益递增，是指某一产品或行业的净收益的增长速度，超过其生产规模的扩大速度的现象或状态。规模收益递增是空间经济学研究的理论基础。
原因是人口和资源的空间集聚产生了规模收益递增的效应。
The reason is the spatial concentration of population and resources had the effect of increasing returns to scale.
因此，产业集群内劳动生产率增长是内生的，且呈现规模收益递增的特征。
As a result, increasing in labor productivity inside cluster is endogenous and shown up by the characteristics of increasing returns to scale.
它所强调的规模收益递增、外溢效应、专业化人力资本积累等，是对传统经济增长理论的重大突破。
Emphasizing on the increasing returns to scale, spillover effect and accumulation of specialized human capital, the endogenous growth theory is a breakthrough in this regard.
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