Q. Compare the additional income Microsoft makes as it moves from 20 million to 40 million copies of Vista with the additional income it makes as it moves from 40 million to 60 million copies of Vista. If Microsoft wants to sell more copies the additional income from each additional copy it sells:

Q. Assume to income for African-American also white workers of equal productivity are $12 also $13 an hour, respectively. If a particular firm hires only whites, its discriminate country coefficient must be:
greater than $1.
less than $1.
zero.
infinity.