边缘成本管理是港口管理中一个非常新的理念,它是指那些基建、设备、运营的主流成本以外的增值成本,其中包括提高港口运营效率,延长港口使用寿命等。很多情况下,它们是无形的,或是短期内看不到的,但往往是满足客户需要的重要因素, Marginal cost management is a very new concept in port management. It refers to the added value costs other than the mainstream costs of infrastructure, equipment and operations, including improving the operational efficiency of ports and extending the service life of ports. In many cases, they are intangible or can not be seen in the short term, but are often important factors in meeting customer needs.