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Delayed open access: An overlooked high‐impact category of openly available scientific literature

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  • Mikael Laakso
  • Bo‐Christer Björk

Abstract

Delayed open access (OA) refers to scholarly articles in subscription journals made available openly on the web directly through the publisher at the expiry of a set embargo period. Although a substantial number of journals have practiced delayed OA since they started publishing e‐versions, empirical studies concerning OA have often overlooked this body of literature. This study provides comprehensive quantitative measurements by identifying delayed OA journals and collecting data concerning their publication volumes, embargo lengths, and citation rates. Altogether, 492 journals were identified, publishing a combined total of 111,312 articles in 2011; 77.8% of these articles were made OA within 12 months from publication, with 85.4% becoming available within 24 months. A journal impact factor analysis revealed that delayed OA journals have citation rates on average twice as high as those of closed subscription journals and three times as high as immediate OA journals. Overall, the results demonstrate that delayed OA journals constitute an important segment of the openly available scholarly journal literature, both by their sheer article volume and by including a substantial proportion of high‐impact journals.

Suggested Citation

  • Mikael Laakso & Bo‐Christer Björk, 2013. "Delayed open access: An overlooked high‐impact category of openly available scientific literature," Journal of the American Society for Information Science and Technology, Association for Information Science & Technology, vol. 64(7), pages 1323-1329, July.
    • Handle: RePEc:bla:jamist:v:64:y:2013:i:7:p:1323-1329
    DOI: 10.1002/asi.22856
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    Cited by:

    1. Lin Zhang & Yahui Wei & Ying Huang & Gunnar Sivertsen, 2022. "Should open access lead to closed research? The trends towards paying to perform research," Scientometrics, Springer;Akadémiai Kiadó, vol. 127(12), pages 7653-7679, December.
    2. Abdelghani Maddi, 2019. "Construction of a Normalized Open Access Indicator (NOAI)," Working Papers hal-02328158, HAL.
    3. Roberta Ruggieri & Fabrizio Pecoraro & Daniela Luzi, 2021. "An intersectional approach to analyse gender productivity and open access: a bibliometric analysis of the Italian National Research Council," Scientometrics, Springer;Akadémiai Kiadó, vol. 126(2), pages 1647-1673, February.
    4. Kendall Faulkner, 2021. "Faculty Use of Open-Access Journals: A Case Study of Faculty Publications and Cited References at a California University," Publications, MDPI, vol. 9(3), pages 1-12, August.

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