10/ Herein lies an admission tradeoff. Absent admission rules, minority teachers attract fewer students. But equalizing class sizes via common merit-based admission concentrates weaker students on minority faculty. Both these outcomes may negatively impact underrepresented teachers' careers.

9/12 While the gender bias is easily nudged away, same-ethnicity preferences are more robust. When set as the default, underrepresented-gender instructors get balanced or near-balanced selection. Ethnic biases, however, are much stronger and persist despite default assignment.

8/12 Biases are intersectional. Female students strongly favor native female instructors but avoid immigrant male teachers entirely. Male students mirror this, although less strongly, preferring native male instructors over immigrant women.

7/12 We find that students show clear biases in class selection. Women prefer female teachers, men prefer male teachers, and there’s a strong bias against immigrant teachers. These biases are especially strong among younger, lower-performing, and female students.

1/12 New working paper! The pioneer penalty in higher education seems to be real. Our new study examines how student biases influence course selection and provides cautionary lessons for role model advertising.

Paper: osf.io/preprints/so...