{"id":776,"date":"2009-02-25T14:38:48","date_gmt":"2009-02-25T19:38:48","guid":{"rendered":"https:\/\/wwd-yvesgingras.uqam.ca\/uncategorized\/the-decline-in-the-concentration-of-citations-1900-2007\/"},"modified":"2020-02-25T14:41:14","modified_gmt":"2020-02-25T19:41:14","slug":"the-decline-in-the-concentration-of-citations-1900-2007","status":"publish","type":"post","link":"https:\/\/yvesgingras.uqam.ca\/en\/publications\/the-decline-in-the-concentration-of-citations-1900-2007\/","title":{"rendered":"The decline in the concentration of citations, 1900\u20132007"},"content":{"rendered":"\n

R\u00e9f\u00e9rence<\/h4>\n\n\n\n

Larivi\u00e8re, V., Gingras, Y. et Archambault, \u00c9. (2009). The decline in the concentration of citations, 1900\u20132007<\/a>. Journal of the American Society for Information Science and Technology, 60<\/em>(4), 858-862.<\/p>\n\n\n\n

R\u00e9sum\u00e9<\/h4>\n\n\n\n

This article challenges recent research (Evans, 2008) reporting that the concentration of cited scientific literature increases with the online availability of articles and journals. Using Thomson Reuters’ Web of Science, the present article analyses changes in the concentration of citations received (2\u2010 and 5\u2010year citation windows) by papers published between 1900 and 2005. Three measures of concentration are used: the percentage of papers that received at least one citation (cited papers); the percentage of papers needed to account for 20%, 50%, and 80% of the citations; and the Herfindahl\u2010Hirschman index (HHI). These measures are used for four broad disciplines: natural sciences and engineering, medical fields, social sciences, and the humanities. All these measures converge and show that, contrary to what was reported by Evans, the dispersion of citations is actually increasing.<\/p>\n","protected":false},"excerpt":{"rendered":"

Larivi\u00e8re, V., Gingras, Y. et Archambault, \u00c9. (2009). The decline in the concentration of citations, 1900\u20132007. Journal of the American Society for Information Science and Technology, 60(4), 858-862.<\/p>\n","protected":false},"author":596,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","footnotes":""},"categories":[24,23],"tags":[],"class_list":["post-776","post","type-post","status-publish","format-standard","hentry","category-peer-reviewed-articles","category-publications"],"yoast_head":"\nThe decline in the concentration of citations, 1900\u20132007 - Yves Gingras - UQAM<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/yvesgingras.uqam.ca\/en\/publications\/the-decline-in-the-concentration-of-citations-1900-2007\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The decline in the concentration of citations, 1900\u20132007 - Yves Gingras - UQAM\" \/>\n<meta property=\"og:description\" content=\"Larivi\u00e8re, V., Gingras, Y. et Archambault, \u00c9. 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