→ otakuX:第二題是成本微幅變動 價格和數量不易變動 02/23 18:57
推 ingles:第一題Bertrand model基本假設本來就是設定同質寡占囉~ 02/23 20:30
→ ingles:但如果題目的兩個廠商都各面對不同的需求線,且出來的解即 02/23 20:44
→ ingles:為異質寡占的Bertrand equilibrium..有誤的話再請高手賜教 02/23 20:45
1. The Nash equilibrium in a Bertrand price setting game in which firms first
choose output capacities resembles the equilibrium is :
a. the competetive model
b. the Cournot model
c. the cartel model
d. the price leadership model
這題答案是(a)
解釋是說同質寡佔的Bertrand equilibrium為P1=P2=MC 故為完全競爭均衡
但題目怎看出來它是同質或異質的阿
另外異質寡占的Bertrand equilibrium 則跟Cournot equilibrium一樣是什麼意思阿?
2. The kinked demand curve theory of oligopoly predicts that
a. price and quantity will be sensitive to small cost changes
b. price and quantity will be insensitive to small cost changes
c. price will be sensitive to small cost changes but quantity will not
d. quantity will be sensitive to small changes but price will not
答案是(b)
我自己翻成
價格(P)跟數量(Q)與成本之間的關係不敏感，所以只能對成本造成小量的變動
不過我覺得還是不太懂
想請問高手幫我解釋一下 或者舉例一下 感恩
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