Signaling
Brad DeLong disentangles the messages that a (male) professor sends by wearing a tie. (Inspired by this sad little diatribe, properly mocked here.)
I have found that wearing a suit and tie is very effective if done occasionally with non-math-oriented students. It tells them that I care because it shows that I have taken sufficient time to prepare and teach the class even though I am a busy person whose schedule requires meetings with:
- some powerful political figure,
- some powerful…
