A Descriptive Analysis of Discrete U.S. Industrial Complexes*
利用Getis/Ord局部G统计量和县级就业数据，识别1989和1997年美国离散工业集群，描述其数量、空间范围、区域分布及产业区位变化。
Abstract. We use the Getis/Ord local G statistic and detailed county-level industry employment data from the U.S. Bureau of Labor Statistics to isolate discrete industrial complexes—or groups of nominally linked industries clustered in particular locations—for two recent years: 1989 and 1997. We describe the characteristics of the complexes in terms of their number, spatial extent, broad regional distribution, and other factors. Data from the two periods help illustrate key shifts in industrial locations, including the continuing concentration of the apparel industry in the Southeast and the ongoing southern shift in U.S. vehicle production.