There was a lot of press about the Pew study, which found that 4 in 10 women are the primary breadwinners. Bryce Covert does a good job unpacking those findings. She correctly points out that those numbers don’t mean that married women are earning more than their spouses. Those numbers reflect the growing number of single mother households and, in fact, single mothers earn consideably less than married couples.

So, this study isn’t necessary great news.