中文摘要：

结合地统计方法（Geo-Statistics）和城市空间结构模型,提出了一种较为客观和科学的识别城市中心的新方法,即首先运用全局和局部Moran指数判别潜在的城市中心,然后运用回归分析进行检验和甄别。利用上海工商局企业数据进行分析,结果表明：上海生产性服务企业高度集聚于中心城区,并形成两个中心：外滩中央商务区和南京西路,国内企业倾向集聚于外滩而海外企业倾向于南京西路。这种双中心格局和国外城市中呈现出的＂绝对分散＂或者＂多中心＂格局并不相同,反映了我国城市空间结构演变的自身特点。

英文摘要：

On the basis of Geo-statistics and urban spatial modeling methods,this paper presents a new approach to identify＂urban center＂,that is introducing the Moran＇s Index to search the potential centers and then using regression analysis to examine them.By analyzing Firm Inventory data collected from Shanghai Administration of Industry and Commerce,it is found that the producer service firms are highly concentrated in central Shanghai and formed two centers：the Bund and the Nanjing West Road（NJWR）.Interestingly,the domestic firms tend to clustering in the Bund while the overseas firms tend to clustering in the NJWR.This twin center pattern is distinct with＂scatteration＂and＂polycentricity＂patterns observed in the Western cities,which unfolds the uniqueness of urban spatial restructuring in China.