“It’s a concrete fact that women earn less than men do. The true gender pay-gap is not known with certainty, but, when comparing equally qualified people doing the same job, most estimates by labor economists put it at 10% – 20%.  The crucial question remains its cause. One common explanation is that women are less likely to negotiate their salaries. We’ve seen this in both bestselling business memoirs like Sheryl Sandberg’s Lean In and in previous studies like the research-based Women Don’t Ask.

Gaining access to a more recent, and more detailed, dataset allowed us to investigate this question anew. What we found contradicts previous research. The bottom line of our study is that women do “ask” just as often as men. They just don’t “get.”

Even we were surprised by the results. We had expected to find less asking by the females. Instead, we found that, holding background factors constant, women ask for a raise just as often as men, but men are more likely to be successful. Women who asked obtained a raise 15% of the time, while men obtained a pay increase 20% of the time. While that may sound like a modest difference, over a lifetime it really adds up.”