Bustle and Vox covered a study about the gender pay gap for STEM PhDs published in the Papers and Proceedings issue of the American Economic Review. In STEM Training and Early Career Outcomes of Female and Male Graduate Students, the authors study the early career paths of over 1,200 newly-minted PhDs in science and engineering fields. They find women earn 31% less on average in their first year out of school, with the majority of the gap attributable to differences in field of study and sector of employment.