{"schema_version":"4ort.packet/1","entity":{"entity_id":"market-concentration","kg_uuid":"b8523089-6bc9-4954-a529-c8d50101f333","wikidata_id":"Q2559581","name":"market concentration","description":"function of the number of firms and their respective shares of the total production in a market","type":"Thing","url":"https://4ort.xyz/entity/market-concentration"},"status":"complete","as_of":{"copy_written_at":"2026-10-22T16:38:47Z","last_source_edit_seen":"2026-09-27T11:04:22Z","stale_possible":true,"claims_refreshed_at":null,"source_revision":null},"facts":[{"field":"P31","label":"instance of","value":"economic concept","value_id":"Q29028649","value_raw":"Q29028649","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q2559581#P31","source_edition":null,"edition_basis":"unknown","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P902","label":"HDS ID","value":"013738","value_id":null,"value_raw":"013738","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q2559581#P902","source_edition":null,"edition_basis":"unknown","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P2579","label":"studied by","value":"economics","value_id":"Q8134","value_raw":"Q8134","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q2559581#P2579","source_edition":null,"edition_basis":"unknown","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P3827","label":"JSTOR topic ID (archived)","value":"market-concentration","value_id":null,"value_raw":"market-concentration","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q2559581#P3827","source_edition":null,"edition_basis":"unknown","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}},{"field":"P6366","label":"Microsoft Academic ID (discontinued)","value":"2779713992","value_id":null,"value_raw":"2779713992","rank":"normal","current":null,"qualifiers":[],"layer":"source","citation":{"source":"wikidata","source_name":"Wikidata","source_record":"https://www.wikidata.org/wiki/Q2559581#P6366","source_edition":null,"edition_basis":"unknown","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"references":[]},"trust":{"band":"unscored","basis":"wikidata-reference-support/2","calibrated":false}}],"unknowns":[],"omitted":{"facts":0,"reason":null},"licences":[{"source":"wikidata","source_name":"Wikidata","licence":"CC0 1.0 Universal","licence_url":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":null,"fields":["P31","P902","P2579","P3827","P6366"]}],"routes":{"entity_page":"https://4ort.xyz/entity/market-concentration","packet_api":"https://4ort.xyz/api/v1/entities/market-concentration/packet","facts_jsonld":"https://4ort.xyz/entity/market-concentration/facts.json","changes_api":"https://4ort.xyz/api/v1/knowledge/get_entity_changes?entity=market-concentration","attention_api":"https://4ort.xyz/api/v1/knowledge/get_attention?entity=market-concentration","wikidata":"https://www.wikidata.org/wiki/Q2559581","official_website":null},"trust_rules":{"wikidata-reference-support/2":"From the references in our copy of the statement: high = it cites a source (stated in P248, or a reference URL that is not Wikipedia); medium = only 'imported from Wikimedia project' or a Wikipedia URL; unscored = our copy holds no reference (older copies dropped references, so this is not evidence that Wikidata has none). Wikidata may hold more references than our copy shows. Reference support, not a probability."},"notes":["Our copy of this item's statements has not been checked against Wikidata since tracking began (2026-10-25); a newer value may exist."]}