![]() ![]() In 2002, the North American Industry Classification System (NAICS) replaced the U.S. Standard Industrial Classification (SIC) system was the older way of classifying businesses to provide new comparability in statistics about business activity across North America. These are Excel files with the concordances, which will not be perfect (sometimes you have m-to-1 or 1-to-m matches). You can find the official link between these two and NAICS here. Two options are ISIC and SIC, related to industry classification. If NAICS are not provided in the dataset, you need a second variable, related to NAICS, to do the match. ![]()
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