Originally posted by @wajoma
Ok, now we agree on something, not all employers make entirely rational decisions, there may be some predominately female companies that discriminate against men.
What the 1-4% stat says is that the gender pay gap is massively over hyped and nothing like the 43% mentioned in the OP.
What's your beef anyway, would you like to correct the 1-4% stat with regulation?
The 1-4% stat is the tip of the iceberg for reasons already explained.
Even assuming that women wanted to discriminate against men and/or held unfavorable gender stereotypes that would limit men's advancement in their companies, "predominately female companies" in the sense of ones controlled by women are rare:
In the U.S., the report said women held 4.2 percent of Fortune 500 CEO positions and 4.6 percent of Fortune 1000 CEO positions in 2013, according to data provided by Catalyst Inc., a nonprofit organization in New York City that promotes inclusive workplaces for women. In the U.S., women held 16.6 percent of board seats of the Fortune 500 in 2012, “the seventh consecutive year of no improvement,” the report said.