106年 - 106 國立成功大學_碩士班招生考試_交通管理研究所：經濟學#122773

科目：研究所、轉學考(插大)-經濟學 | 年份：106年 | 選擇題數：0 | 申論題數：8

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所屬科目：研究所、轉學考(插大)-經濟學

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申論題 (8)

Question 1 Consider a quantity-competition oligopolistic market. There are 9 firms and each firm has a cost C(q)=0.28q+1.6. Suppose that market demand is Q=1,000-1,000P. Answer the following questions. Find firm's output q= _______ and profit π= _______ market price P= _______ and output Q= _______

(a) Calculate monopoly quantity Qm= _______ monopoly profit π= _______ and social surplus SSm= _______

(b) Under the first best pricing regulation, calculate monopoly quantity Q= _______ monopoly profit π= _______ and social surplus SS＜sub＞f＜/sub＞= _______

(a) Suppose that these two firms compete in quantity (Cournot competition). Calculate firm's output q_i= _______ firm 1's profit π₁= _______

(b) Suppose that these two firms collude in quantity (Cartel collusion). Calculate firm's output q_i= _______ firm 1's profit π₁= _______

(c) Suppose that firm 1 is a quantity setter and firm 2 is a quantity follower (Stackelberg competition). Calculate firm 1's output q₁= _______ and profit π₁= _______

(a) Find the demand of dominant firm Dd= _______

(b) Suppose marginal cost of dominant firm is MC_d=5,000. Find market price P= _______ the output of dominant firm Q_d= _______ and the output of fringe firms Q_s= _______