Problem
In terms of signaling behavior:
a. Why is wearing a suit a weaker signal of ability than higher educational achievement?
b. Why do some majors in college provide more powerful signals to future employers than others?
c. Why could double-majoring provide a more powerful labor market signal than having a single major?
d. How would you explain why students might be said to "overinvest" in grades as opposed to learning course material?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.