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The State Of Oa: A Large-Scale Analysis Of The Prevalence And Impact Of Open Access Articles, Heather Piwowar, Jason Priem, Vincent Larivière, Juan Pablo Alperin, Lisa Matthias, Bree Nordlander, Ashley Farley, Jevin West, Stephanie Haustein
The State Of Oa: A Large-Scale Analysis Of The Prevalence And Impact Of Open Access Articles, Heather Piwowar, Jason Priem, Vincent Larivière, Juan Pablo Alperin, Lisa Matthias, Bree Nordlander, Ashley Farley, Jevin West, Stephanie Haustein
Copyright, Fair Use, Scholarly Communication, etc.
Despite growing interest in Open Access (OA) to scholarly literature, there is an unmet need for large-scale, up-to-date, and reproducible studies assessing the prevalence and characteristics of OA. We address this need using oaDOI, an open online service that determines OA status for 67 million articles. We use three samples, each of 100,000 articles, to investigateOAin three populations: (1) all journal articles assigned a Crossref DOI, (2) recent journal articles indexed in Web of Science, and (3) articles viewed by users of Unpaywall, an open-source browser extension that lets users find OA articles using oaDOI. We estimate that at least …