The Nine Nations of North America and the Value Basis of Geographic Segmentation
通过概率样本比较北美九国概念与人口普查局区域在价值观上的细分效果，发现证据不支持放弃现有区域划分，并讨论了管理启示。
The utility of the concept of the "Nine Nations of North America" for segmentation was tested by comparing several geographic segmentation systems with values in a probability sample of the coterminous United States. The evidence does not mandate abandoning the Bureau of Census regions. Managerial implications are discussed.