课程名称：经济学 课程性质：必修 课程范围：生产者决策的基础、独占、不完全竞争市场 开课教师：曾巨威教授 开课学院：社科院 开课系级：经济系 考试日期(年月日)：98/04/21 考试时限(Mins)：110mins 试题本文： 一、假设市场为完全竞争(perfect competition)，请按下列叙述详细解释其意。 (1)A perfectly competitive firm faces a demand curve that is horizontal at the market price. (2)A competitive firm's supply curve is its MC curve for all prices above AVC,and a vertical line at zero units for all prices below AVC. 二、Assumed that the market for carboard is perfectly competitive. In each of the following scenarios, should a typical firm continue to produce or should it shut down in the short run? Draw a diagram that illustrate the firm's situation in each case. (1) minimum ATC =$2.00 minimum AVC =$1.50 market price=$1.75 (2) MR =$1.00 minimum AVC =$1.50 minimum ATC =$1.75 三、假设市场为独占(monopoly)，请按下列叙述详细解释其意。 (1)All else equal, a monopoly market will have a higher price and lower output than a perfectly competitive market. (2)Price discrimination occurs when a firm charge different price to different customers for reasons other than difference in costs. 四、Draw demand, MR, and ATC curves that show a monopoly that is just breaking even. 五、假设市场为独占性竞争(monopolistic competition)，请按下列叙述解释其意。 (1)Under monopolistic competition, firms can earn positive or negative economic profit in the short run. But in the long run, free entry and exit will ensure that each firm earns zero economic profit, just as under perfect competition. (2)In the long run, a monopolistic competitor will operate with excess capacity─that is, it will not sell enough output to achieve to minimum cost per unit. 六、假设市场为寡占(Oligopoly)，请按下列叙述详细解释其意。 (1)Game thoery means an approach to modeling the strategic interaction of oligopolists in terms of moves and countermoves. (2)A Nash equilibrium is a contribution of strategies in which each player is making the best choice for him or herself, give the choice of all players. 七、试解释下列各名词︰ (1) Tacit collusion (2) Cartel (3) Antitrust Law (4) nonprice competition (5) payoff matrix ※ 编辑: yggub 来自: 140.119.130.44 (06/23 13:09)