The road less travelled: oligopoly and competition policy in general equilibrium

The road less travelled: oligopoly and competition policy in general equilibrium
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少有人走的路:一般均衡下的寡头垄断和竞争政策

DOI:
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发表时间:
2002
期刊:
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影响因子:
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通讯作者:
Johan Stennek
Johan Stennek
中科院分区:
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文献类型:
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作者:
J. Neary;Bruce Greenwald;Ravi Kanbur;Henrik Horn;Lars Persson;Johan Stennek

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我回顾以往的方法来模拟寡头垄断的一般均衡,并提出了一个新的观点,在原则上克服了他们的不足之处:建模公司作为一个大的在自己的市场,但在整个经济中的小。实现这种方法需要一个易于处理的偏好规范。可以使用Dixit-Stiglitz偏好(这意味着等弹性感知需求函数),但“连续二次”偏好(这意味着线性感知需求函数)更方便。为了说明它们的有用性,我构建了一个简单的寡头垄断一般均衡的封闭经济模型,并得出一些令人惊讶的影响竞争政策。
I review previous approaches to modelling oligopoly in general equilibrium, and propose a new view which in principle overcomes their deficiencies: modelling firms as large in their own market but small in the economy as a whole. Implementing this approach requires a tractable specification of preferences. Dixit-Stiglitz preferences (which imply iso-elastic perceived demand functions) could be used, but "continuum-quadratic" preferences (which imply linear perceived demand functions) are more convenient. To illustrate their usefulness, I construct a simple closed-economy model of oligopoly in general equilibrium and derive some surprising implications for competition policy.
DOI: 10.1111/1468-2354.t01-1-00021
发表时间: 2002-05
期刊: Macroeconomics eJournal
影响因子: --
作者:
G. Ottaviano;T. Tabuchi;Jacques-François Thisse
通讯作者: G. Ottaviano;T. Tabuchi;Jacques-François Thisse