答案和详解如下： 6.Which of the following statements about a monopolist is least accurate? A) A profit-maximizing monopolist will expand output until marginal revenue equals marginal cost. B) A profit-maximizing monopolist will supply less of his product than the amount consistent with the conditions of ideal static efficiency for an economy. C) A monopolist will always be able to earn economic profit. D) Monopolists are price searchers. The correct answer was C) Monopolists maximize profit when MR = MC. If the ATC curve lies above the demand curve, monopolists will lose money. 7.If a profit maximizing firm finds that its marginal revenue exceeds its marginal cost, it should: A) increase output if it is a price taker, but not if it is a price searcher. B) decrease output, regardless of whether it is a price taker or a price searcher. C) increase output, regardless of whether it is a price taker or a price searcher. D) increase output if it is a price searcher, but not if it is a price taker. The correct answer was C) Any firm will maximize profits by producing the output where MR = MC. 8.A monopolist will expand production until: A) P = MC and the price of the product will be determined by the MC curve. B) MR = MC and the price of the product will be determined by the demand curve. C) P = MR and the price of the product will be determined by the ATC curve. D) MR = MC and the price of the product will be determined by the MR curve. The correct answer was B) A monopolist will expand production until MR = MC. The demand curve lies above the intersection of the MR and MC curve and the price charged is the price on the demand curve for the output where MR = MC. 9.A monopolist will maximize profits by: A) producing at the point where price is equal to MR. B) producing at the output level where marginal revenue equals average variable cost and charging a price along the demand curve that corresponds to the output rate. C) setting the quantity as low as possible. D) producing at the output level where marginal revenue equals marginal cost and charging a price on the demand curve that corresponds to the output rate. The correct answer was D) A monopolist will maximize profits by producing at the output level where marginal revenue equals marginal cost and charging a price on the demand curve that corresponds to the output rate. This will maximize profits. The goal of the monopolist is to maximize profits, not revenue (as suggested by the response: "setting the quantity as low as possible"). 10.A monopolist will continue expanding output as long as: A) marginal revenue is positive. B) marginal revenue is greater than marginal cost. C) average total costs are declining. D) economic profit is greater than zero. The correct answer was B) The optimum behavior of all firms is to produce until the point where MR = MC. So, the monopolist can increase total profit by increasing production as long as marginal revenue is greater than marginal costs. 11.Which of the following statements regarding a monopolist is most accurate? A) A monopolist will maximize the average profit per unit sold. B) If a firm has a monopoly, it will always be able to earn economic profits. C) A monopolist, like any other profit-maximizing firm, will sell at the output level where marginal revenue equals marginal cost. D) A monopolist will charge the highest price for which he can sell his product. The correct answer was C) The demand curve for monopolists slopes downward to the right reflecting the fact that a higher price results in lower demand. Monopolists maximize profits by expanding output until marginal revenue equals marginal cost. | 
发表于 2008-4-17 10:46
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