This article in Aesthetics for Birds has some interesting statistics on the percentage of papers authored or co-authored by women and minorities in the top print aesthetics journals: Journal of Aesthetics and Art Criticism and British Journal of Aesthetics. About 20% of articles in these journals are written by women in the period from 2010 onwards. When we look at memberships of professional aesthetics organizations, the percentage of female aestheticians is about 32%. So that means women are underrepresented in JAAC and BJA. What can account for this disparity? JAAC keeps a record of gender and geographic location of submissions.
Sherri Irvin finds "It is notable that over the past three years, women authors have submitted to JAAC at a rate substantially higher than the rate at which they are published in JAAC from 2010-2014, and closer to the proportion of women members in the ASA. During 2 of the last 3 years, the acceptance rate for women has been lower than for men. Though the differences seem small (only 2-3 percentage points), another way of putting them is that in 2012-3, men were 21.4% more likely than women to have their manuscripts accepted, while in 2013-4, they were 11.6% more likely." She also writes "US submissions tend to be accepted at a rate slightly over 20%, while submissions from non-English-speaking countries tend to be accepted at far lower rates".
JAAC practices double-anonymous refereeing. I am in the statistics, since I've co-authored an article that was published in JAAC in 2011. My co-author and I were very pleased with thoroughness of our reviewer, who is one of the few experts on the aesthetics of paleolithic art. We could guess who he was, and it turned out (as he later communicated with us) he also had an inkling as to who we were. Aesthetics is a small world. The only time I reviewed for JAAC I didn't know who the author was, so I believe I reached a verdict that was unsullied by considerations of the author's identity. But was it? Thoughts about the identity of an author can play a role in one's decision, even if you don't want to, this is after all how implicit bias works.