Kate's Great Crete (KGC) is a local monopolist of ready-mix concrete. Its annual demand function is Q = 20,000 - 400P, where P is the price, in dollars, of a cubic yard of concrete and Q is the number of cubic yards sold per year. What price does KGC charge per unit when it sells 5,000 cubic years of concrete per year?

Fernando charges the restaurant Flaming Fernando's $1,000 annually for use of his name. If Fernando increases the fee for use of his name

A) the restaurant's average fixed cost, average variable cost, average total cost, and marginal cost curves all shift upward. B) the restaurant's average fixed cost, average total cost, and marginal cost curves shift upward. C) the restaurant's average variable cost, average total cost, and marginal cost curves shift upward. D) the restaurant's average fixed cost and average total cost curves shift upward.

An oligopolist cannot use the MR = MC rule to find its equilibrium output level because

a. oligopolists do not face stable demand curves for their output b. oligopolists do not try to maximize profits in the long run c. it is too difficult to estimate marginal cost d. the rule applies only in perfect competition e. the minimum efficient scale exceeds total quantity demanded