产业集群内的企业在利润最大化的驱使下不断增加企业边界,在企业内部的生产成本和交易成本的制约下不断缩小企业边界在这两种相反效应的共同作用下,企业边界将达到边际收益等于边际成本时的规模,企业实现利润最大化。企业生产边际成本要包含企业内部交易成本。 Under the impetus of profit maximization, the enterprises in the industrial cluster keep increasing the boundary of the enterprises, narrowing their boundaries under the constraints of production costs and transaction costs within the enterprises. Under the combined effect of these two opposite effects, the boundary of the enterprises will reach the marginal revenue Equal to the size of the marginal cost, companies maximize profits. The marginal cost of production of enterprises to include internal transaction costs.