2a. Is it possible for a racist to employ only black people in an equilibrium? Why or why not?

2b. In class, I've said that the marginal discriminator is quite important and extreme discriminators aren't. Explain why the most extreme racists and non-racists have little to no effect on the black-white wage gap.

2c. Write out the differences-in-differences equation I covered in class and explain what each term means.

2d. College towns are likely to house monopsonies. However, Boston is decidedly not an area where that's true. Why is that the case?

2e. Write out the Oaxaca-Blinder Decomposition for white people and black people and explain each term.