New research and female workers, alike, suggest women with a tight female inner circle reach higher-ranking positions.
Behind many great women, there is a tight circle of other women.
A recent joint study by the University of Notre Dame and Northwestern University reviewed the networks of more than 700 former graduate students from a top-ranked business school in the U.S. It found that more than 75% of high-ranking women had strong ties to two or three other women that they checked in with frequently on and off the clock. And those who had a strong, diverse network -- plus a core fully-female support group -- were 2.5 times more likely to land jobs than women with smaller networks and a male-dominated inner circle.