Harvard on gender pay gap

almost like one number can't explain an entire complex relationship

"Both policies reduced the gender earnings gap. The gap shrank from $0.89 before the FMLA policy change to $0.91 between March 2016 and July 2017 and to $0.94 from July through December 2017. Yet in addition to reducing the gap, these policies also reduced workplace flexibility. Because female workers have greater revealed preference for this flexibility, women likely fared worse from these policies than men"
https://scholar.harvard.edu/files/bolotnyy/files/be_gendergap.pdf