Coordinated Effects∗
Coordinated Effects∗
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协同效应
DOI：
10.5040/9781509904938.ch-013
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发表时间：
2018
影响因子：
12.7
通讯作者：
L. Marx
中科院分区：
文献类型：
--
作者：
S. Loertscher;L. Marx
协同效应是由于合并增加了协同风险而产生的危害。如果一家公司的收购使一个原本竞争激烈的市场面临协调的风险，那么该公司就被称为“特立独行者”。协同效应和特立独行的概念在反托拉斯中占有突出地位，但事实证明，这些概念难以正式化。模型协调选择方案，我们提供了明确的定义和测试，只需要合并前的数据。协调效应的风险随价格形成过程而变化。一种基于独立的方法对古诺模型是有用的，但需要对基于采购的市场进行改进。HHI增加不能可靠地预测协调效应。
Coordinated effects are harms that arise because a merger increases the risk of coordination. A firm is called a “maverick” if its acquisition puts an otherwise competitive market at risk of coordination. The notions of coordinated effects and mavericks fare prominently in antitrust but have proved elusive to formalize. Modeling coordination as selection schemes, we provide clear-cut definitions of and tests for both that only require pre-merger data. Risk for coordinated effects varies with the price formation process. A maverick-based approach is useful for Cournot, but requires refinements for procurement-based markets. HHI increases do not reliably predict coordinated effects.
影响因子：
8.2
作者：
Volker Nocke;M. Whinston
通讯作者：
Volker Nocke;M. Whinston