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研討日期 |
2010年08月7日10:20 ~ 13:00 |
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研討地點 |
台大社會科學院26教室 |
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題目 |
A characterization for the negative welfare effects of cost reduction in Cournot oligopoly |
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作者 |
Jingang
Zhao |
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文獻出處 |
IJIO(2001) |
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報告人 |
施姵全 |
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參加人員 |
黃鴻、王光正、林燕淑、陳宏易、彭正浩、曾靜枝、王羿傑、曹古駒、莊復賢、徐靖、許凱威、高國峯、林晏如、鐘暳陵、吳宜謙、周品旭、許至乙、周冰瑤、施姵全 |
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摘要 |
This paper characterizes the welfare effects of
cost reduction in a Cournot model with linear costs.
∙ Under linear demand, a
small reduction in a firm's marginal cost reduces welfare if and only if its
market share is less than 1/(2n+2), or its marginal cost exceed a critical
level.
∙ A large cost reduction
by the firm increases welfare if and only if its magnitude is at least twice
the difference between the current marginal cost and its critical value. |
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備註 |
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