In today’s developed world, women are better off than ever before, thanks largely to the women’s movement in the past century. But though at first glance it may seem like the battle against inequality has been won, there is still much to do.

Consider compensation: In 1970, American women made 59 cents for each dollar men made in similar jobs. While that figure has risen, progress has been slow: in 2010, it was still only 77 cents. As one activist noted wryly, “Forty years and eighteen cents. A dozen eggs have gone up ten times that amount.” Nor is this problem unique to the U.S.: in Europe, the current figure is little better at 84 cents.