We began by evaluating the proportion of highly-used titles in 2017 within the Big 5 provider packages: the journals that account for the top X% of use, examined through multiple proxies for “use”, including
For each use metric we graph the percent of titles within each provider’s package that are among the top 80% used titles (JR80 Titles), the top 90% used titles (JR90 Titles), and the top 95% used titles (JR95 Titles) at UVA. The number of titles represented in each level of use is printed on the figures as well, along with the number of titles that make up the remaining 5% of use.
Among Elsevier journals, 609 or 21.7% of the titles are among the journals that make up 80% of downloads at UVA in 2017. Another 319 titles, or 33.1% overall, are among the journals that make up 90% of downloads at UVA. Including journals that make up 95% of downlaods adds another 294 titles from Elsevier, or 43.6% of the titles in the Elsevier package. Finally, 1580 journals in Elsevier’s package, or 56.4%, are not among the most highly-used journals at UVA by this metric.
The pattern for Springer is similar to that of Elsevier. Taylor & Francis and Wiley have a slightly higher ratio of high-use journals, while Sage has the highest rate of high-use journals.
Looking at only downloads of articles from published in the current year, among Elsevier journals, 494 or 17.6% of the titles are among the journals that make up 80% of use at UVA. Another 305 titles, or 28.5% overall, are among the journals that make up 90% of current year downloads within Elsevier; and an additional 280 titles from Elsevier, or 38.5% of the titles in the Elsevier package, account for 95% of use. 1723 journals in Elsevier’s package, or 61.5%, are not among the most highly-used journals at UVA by this metric.
Both Springer and Wiley have similar ratios of high-use journals by current year downloads. Taylor & Francis has a lower ratio and Sage shows a higher ratio of highly-used journals by this metric.
The figures above are repeated below but with Elsevier journals disaggregated into the Freedom collection, Subscribed collection, and journals we were not able to match. Here “high use” is calculated within the whole Elsevier package, as above, but visualized by the disaggregated Elsevier sets.
With regard to article downloads, the majority of journals in the Subscribed Collection are high-use journals by the JR80 measure (418 of 726 titles). Only 15% of the titles in the Freedom Collection are highly used by the JR80 measure( 166 of 1086 titles).
Focusing on current-year downloads only, 335 journals in the Subscribed Collection are high-use journals by the JR80 metric (46%); 136 journals in the Freedom Collection hit this mark (13%).