According to economists, the income elasticity of an inferior good

Which of the following is not one of the obstacles mentioned in the text to a successful system of price discrimination? Inability to

A) evade legal restrictions on discrimination. B) identify differences in demand among customers. C) prevent customers from reselling the product. D) prevent resentment from arising among the people who pay more.

Assume a monopolist charges a price corresponding to the intersection of the marginal cost and marginal revenue curves. If this price is between its average variable cost and average total cost curves, the firm will:

a. earn an economic profit. b. continue to operate in the short run. c. shut down. d. all of these are true.