Industry classification
Introduction '''Industry classification''' or '''industry taxonomy''' is a type of economic taxonomy that classifies companies, organizations and traders into industrial groupings based on similar production processes, similar products, or similar behavior in financial markets.National and international statistical agencies use various industry-classification schemes to summarize economic conditions. Securities analysts use such groupings to track common forces acting on groups of companies, to compare companies' performance to that of their peers, and to construct either specialized or diversified portfolios.
Sectors and industries Economic activities can be classified in a variety of ways. At the top level, they are often classified according to the three-sector theory into sectors: primary (extraction and agriculture), secondary (manufacturing), and tertiary (services). Some authors add quaternary (knowledge) or even quinary (culture and research) sectors. Over time, the fraction of a society's activities within each sector changes.Below the economic sectors are more detailed classifications. They commonly divide economic activities into industries according to similar functions and markets and identify businesses producing related products.Industries can also be identified by product, such as: construction industry, chemical industry, petroleum industry, automotive industry, electronic industry, power engineering and power manufacturing (such as gas or wind turbines), meatpacking industry, hospitality industry, food industry, fish industry, software industry, paper industry, entertainment industry, semiconductor industry, cultural industry, and poverty industry.Market-based classification systems such as the Global Industry Classification Standard (GICS), the Industry Classification Benchmark (ICB) and The Refinitiv Business Classification (TRBC) are used in finance and market research.
List of classifications A wide variety of taxonomies is in use, sponsored by different organizations and based on different criteria. Abbreviation Full name Sponsor Criterion/unit Node count by level Issued ANZSIC Australian and New Zealand Standard Industrial Classification Governments of Australia and New Zealand    1993, 2006 BICS Bloomberg Industry Classification Standard Bloomberg L.P.  10/.../2294 GICS Global Industry Classification Standard Standard & Poor's, MSCI market/company 2-8 digits11/24/69/158 1999–present (2018) HSICS Hang Seng Industry Classification System Hang Seng Indexes Company Revenue source 11/31/89 IBBICS Industry Building Blocks Industry Building Blocks Market line of business 19/130/550/3000/202002002 ICB Industry Classification Benchmark FTSE market/company 11/20/45/173 2005–present (2019) ISIC International Standard Industrial Classification of All Economic Activities United Nations Statistics Division production/establishment 4 digits21/88/238/419  1948–present (Rev. 4, 2008) MGECS Morningstar Global Equity Classification System Morningstar, Inc. Securities behavior 3/14/69/148 NACE Statistical Classification of Economic Activities in the European Community European Union production/establishment 6 digits 1970, 1990, 2006 NAICS North American Industry Classification System Governments of the United States, Canada, and Mexico production/establishment 6 digits17/99/313/724/1175 (/19745)1 1997, 2002, 2012, 2017, 2022 RBICS FactSet Revere Business Industry Classification System FactSet, acquired in 2013 line of business 11000 SIC Standard Industrial Classification Government of the United States production/establishment 4 digits1004 categories 1937–1987 (superseded by NAICS, but still used in some applications)SNISwedish Standard Industrial Classification Government of Sweden TRBC The Refinitiv Business Classification Refinitiv market/company 10 digits13/33/62/154/8982004, 2008, 2012, 2020 UKSIC United Kingdom Standard Industrial Classification of Economic Activities Government of the United Kingdom 1948–present (2007) UNSPSC United Nations Standard Products and Services Code United Nations Product 8 digits (optional 9th) (four levels) 1998–present1The NAICS Index File lists 19745 rubrics beyond the 6 digits which are not assigned codes.
See also * Economic sector* Economic industry* Product classification
References
Further reading * * * Bernard Guibert, Jean Laganier, and Michel Volle, "An Essay on Industrial Classifications", ''Économie et statistique'' '''20''' (February 1971)  full text basic industries ''' basic-industries-jobs-career-paths-and-growth.html'''