Cluster theory represented by Michael Porter, try to answer the what question: what is cluster, what is in the cluster, what good by forming a cluster, how to produce the advantage of cluster.

• 而以迈克尔·波特为代表的集群理论则主要是回答了what的问题，即什么是集群，集群有什么内容，什么好处，如何促进集群优势的形成?