Authors' choice between parent and mirror journals of Elsevier

Key points2021, open access articles in parent journals with higher charges accounted for 72% of the total open access articles in parent and mirror journals.Although the charges for mirror journals were significantly reduced in 2021, the increase in the number of articles was relatively small.These findings suggest that many authors do not significantly respond to changes in article processing charges.

Automated summary

In 2021, open access articles from high-charging parent journals accounted for 72% of the total open access articles in parent and mirror journals. Despite the significant reduction in charges for mirror journals, there was a relatively small increase in the number of articles. These findings suggest that many authors do not significantly respond to changes in article processing charges.