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The Standard Industrial Classification (SIC) is a system for classifying industries by a four-digit code as a method of standardizing industry classification for statistical purposes across agencies. Established in the United States in 1937, it is used by government agencies to classify industry areas.
Bloomberg Industry Classification Standard [2] Bloomberg L.P. 10/.../2294 GICS Global Industry Classification Standard: Standard & Poor's, MSCI: market/ company 2-8 digits 11/24/69/158 1999–present (2018) HSICS Hang Seng Industry Classification System [3] Hang Seng Indexes Company: Revenue source 11/31/89 IBBICS Industry Building Blocks [4]
The Global Industry Classification Standard (GICS) is an industry taxonomy developed in 1999 by MSCI and Standard & Poor's (S&P) for use by the global financial community. The GICS structure consists of 11 sectors, 25 industry groups, 74 industries and 163 sub-industries [1] into which S&P has categorized all major public companies.
The International Standard Industrial Classification of All Economic Activities (ISIC) is a United Nations industry classification system. Wide use has been made of ISIC in classifying data according to kind of economic activity in the fields of employment and health data.
The North American Industry Classification System or NAICS (/ n eɪ k s /) [1] is a classification of business establishments by type of economic activity (the process of production). It is used by governments and business in Canada , Mexico , and the United States of America .
Level 3: 272 groups identified by three-digit numerical codes (01.1 to 99.0); Level 4: 615 classes identified by four-digit numerical codes (01.11 to 99.00). The first four digits of the code, which is the first four levels of the classification system, are the same in all European countries. National implementations may introduce additional ...
Thus, (*) the 1997 data are based on a slightly different classification than the 2007 and 2002 data. Number of establishments by sector in the United States economy in 1997, 2002, and 2007. Value of sales, shipments, receipts, revenue, or business done by sector in the United States economy in 1997, 2002, and 2007.
An economic taxonomy is a system of classification of economic activity, including products, companies and industries. Some economists believe that the study of economic policy demands the use of a taxonomic/classificatory approach. [1]