**New paper** Over the past 20 years (but not before!), Black and Hispanic college graduates have been steadily earning degrees in relatively lower-paying majors.

The main culprit? An increasingly-common public university policy.

A thread. #EconTwitter zacharybleemer.com/wp-content/upl… Underrepresented minority (URM) college graduates have long earned lower-paying majors than their non-URM peers, but the gap has been growing for the past 20 years.

Today, URM graduates earn degrees with lower average wages by almost 3%. 2/n

Thrilled to share that my research on the economic mobility ramifications of banning affirmative action is forthcoming at the @QJEHarvard.

https://twitter.com/QJEHarvard/status/1433134029704884227

Here's a thread that summarizes the paper's key findings.

https://twitter.com/zbleemer/status/1296778111107956737

Now published: Looking for a great way to explain regression discontinuity designs to undergrads? Show them the causal wage return to majoring in economics! A short thread. #EconTwitter

https://twitter.com/AEAjournals/status/1374365803269779461

In 2008-2012, UC Santa Cruz limited access to its economics major to students who earned at least a 2.8 GPA in their first two economics courses. Compliance was imperfect, but having a 2.8 GPA made students much more likely to declare the economics major.