The Early County Business Pattern Files: 1946-1974
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The County Business Pattern (CBP) files contain employment and establishment counts for detailed industry codes covering all counties in the United States. The contribution of this project is to digitize, clean, and prepare the CBP files from 1946-1974. We also apply the methods developed in Eckert,
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美国国家经济研究局创建时间：
2022-10-01
