The Nobel economics prize was awarded Monday to Claudia Goldin, a professor at Harvard University, for research that has advanced the understanding of the gender gap in the labor market.

The announcement went a tiny step to closing the Nobel committee’s own gender gap: Goldin is just the third woman to win the prize out of 93 economics laureates.

She has studied 200 years of women’s participation in the workplace, showing that despite continued economic growth, women’s pay did not continuously catch up to men’s and a divide still exists despite women gaining higher levels of education than men.