降低外购投入成本在施工企业取得成本优势的战略中有着举足轻重的地位。施工企业的采购成本受三方面因素的影响:采购(包括外购经营投入和外购资产投入)的单位成本;它们在施工中的利用率;通过联系对相关施工活动的影响。本文将就这三个方面分别加以论述。 Reduce the cost of outsourcing purchased construction enterprises in the cost advantage of the strategy has a pivotal position. The procurement costs of construction enterprises are affected by three factors: the unit cost of procurement (including the purchased operation investment and purchased assets investment); their utilization rate in construction; and the impact on the related construction activities through the connection. This article will discuss each of these three aspects separately.