中文摘要：

本文通过集聚动力机制的经济学分析发现，与传统制造企业集聚以追求成本剩余为主不同。服务企业集聚主要追求收益剩余；通过产品特征分析发现，与传统制造产品可存储和远距离传输不同，服务产品的生产和消费在时空上具有同一性。正是因为这两个方面的改变，服务业集聚的评价模式也相应地发生了改变。即与传统制造业集聚将行业的区域集聚和行业内企业集聚结合起来评价不同，服务业集聚应从这两个维度分别进行评价。基于此，本研究构建了一个服务业集聚的二维评价模型，并以美国服务业为例进行了实证研究。

英文摘要：

Through economic analysis of agglomeration propulsion mechanism we found that, different with the traditional manufacturing enterprises agglomeration in pursuit of costs surplus mainly, the goal of service enterprises agglomeration is mainly to pursue returns surplus. Through product features analysis we found that, different with manufacture products storage and long-distance transportation, the production and consumption of service products needs time and space identity. Because of these two changes, the evaluation pattern of services agglomeration changes correspondingly. Different with the traditional industries agglomeration evaluation which used industry regional agglomeration together with enterprise agglomeration in industry, service agglomeration should be evaluated from these two dimensions. Based on this, the study constructed a two-dimensional evaluation model of services agglomeration and had a case study of American services.