中文摘要：

复杂网络为研究多市场背景下大量企业的竞争关系提供了一个新的工具。单一模型很难全面客观地描述产业竞争关系,为此提出了模型群的思想。以中国汽车零部件产业为例,首先建立了零部件企业与产品的二分网络模型和根据产品销售量加权的加权二分网络模型,然后分别把布尔二分网络模型和加权二分网络模型投影到企业节点上,根据不同的投影规则得到汽车零部件企业间布尔竞争关系网络模型和有向竞争压力网络模型。对4个模型的相互联系和区别进行了综合分析,并对网络模型拓扑属性的经济学背景进行解释。

英文摘要：

Complex networks provide a new tool for studying relationships among a large number of enterprises in industry.However,it is difficult for a single model to describe the competitive relationships between enterprises comprehensively and objectively.In order to solve this problem,we propose the model group theory in this paper.Taking the industry of Auto Parts in China as an example,the paper first models a bipartite network and a weighted bipartite network which sets the enterprises＇ sales volume of corresponding products as edge weight.Further,the paper constructs a Boolean competitive relationship network of auto Parts Manufacturers projected by the Boolean Bipartite Network and a directed competitive pressure network of Auto Parts Manufacturers projected by the Weighted Bipartite Network.Then the paper analyzes the relations and differences of the four models comprehensively and explains the economical backgrounds of the network models topological properties.