中文摘要：

在对复杂网络的形成、特性和代表性研究成果简要总结的基础上，通过对国际航运网络的实证分析，研究了国际航运网络表现出的小世界效应和无标度特性，对其存在的一些个性进行了分析。将港口产业与港航服务企业等效为产品网络中的主导产品与其互补产品，将航运企业等效为消费者，通过对产品网络中网络效应的分析，以及对消费者两阶段预算分配过程的研究，对港航系统产品网络中网络效应特性的内生机理进行了探讨，指出某些特定领域内复杂网络统计特征源于产品系统的网络收益对产品效用的影响。

英文摘要：

The development, properties and some researches of scale-free networks were summarized. Some complex network characteristics of global shipping lines network were empirically analyzed. Ports and shipping services were equated to dominant products and their complementary products in product networks. The mechanism of network effect in the production system was analyzed by using two-stage budgeting procedure. It is seen that some complex network characters in a certain domain come from the influence of network benefits in the production network.