Promotion Decisions

As I write this in the midst of the battle for the Democratic nomination for the presidency of the U.S., there is a debate going on about whether it's harder for an African-American man or a Caucasian woman to gain the presidency. It is impossible to tell, of course, from a study of this election (I mistrust studies where n=1, Freud notwithstanding).  I did come across an article, however, that bears on the topic, if only to the extent that it tells us a bit about how sexism can operate where a traditionally male job is at stake.