Straight from the excellent The Behavioural Insights Team:
They experimentally modified job adverts — “switched the default, so that all new vacancies would be advertised as available for part-time work, or as a job-share, in addition to full-time”
What do you get? “significant increase of 16.4% in the proportion of female applicants”
Full blog post and report: https://www.bi.team/blogs/switching-the-default-to-advertise-part-time-working-boosts-applications-from-women-by-16/
Didier Ruedin 