Profits go up when women are in the boardroom? 
It’s a compelling argument, but there’s no actual evidence that it’s true. Lots of studies show a correlation between higher female board representation and higher returns, but no one has definitively proven causation; that it’s the act of adding women that drove the financial performance. Profitability is far too complex to be solved that simply. There may be well-grounded reasons for increasing women’s presence on boards, but enhanced financial performance isn’t one of them, and a 2010 study of companies in Norway, where a law requires 40% of board seats to be filled by women, showed that financial performance declined.