Economist Justin Wolfers recently wrote about how female economists are airbrushed out of academic discussion when they have a male coauthor.

We decided to bring together some of the women who’ve had the biggest impact on the subject and the practice of economic policy, whether in academia, business, politics, or education.

These women are not just modern academic economists. Several are historical figures who made major contributions to the discipline at a time when female participation was incredibly difficult.

Take a look at 13 of the most influential.