  For-profit editors such as Elsevier and Springer have been subject to
sustained criticism from academics and university libraries, including calls to
boycott, and discontinued subscriptions. Mathematicians have played a
particularly active role in this critique, and have endeavored to imagine new
publication practices and create new journals. This motivates the monitoring of
the share of articles published by different editors. I used data from
MathSciNet over the period 2000-2017, and focused on the 100 journals with
highest citations per article. Within this category, the share of articles
published by Elsevier and Springer has steadily increased over this period,
from about a third to almost half of the total.
