May 26, 2022

Research Article (Preprint): “State of Open Access Penetration in Universities Worldwide”

The following research article (preprint) was recently shared on arXiv.


State of Open Access Penetration in Universities Worldwide


Nicolas Robinson-Garcia
TU Delft

Rodrigo Costas
Leiden University
Stellenbosch University

Thed N. van Leeuwen
Leiden University


via arXiv


The implementation of policies promoting the adoption of an Open Science culture must be accompanied by indicators that allow monitoring the penetration of such policies and their potential effects on research publishing and sharing practices. This study presents indicators of Open Access (OA) penetration at the institutional level for universities worldwide. By combining data from Web of Science, Unpaywall and the Leiden Ranking disambiguation of institutions, we track OA coverage of universities’ output for 963 institutions.

This paper presents the methodological challenges, conceptual discrepancies and limitations and discusses further steps needed to move forward the discussion on fostering Open Access and Open Science practices and policies.

Direct to Full Text Article (Preprint)
23 pages; PDF.

Note: Also available via Zenodo

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Gary Price ( is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at, and is currently a contributing editor at Search Engine Land.