Abstract

Chilean antitrust authorities banned termination-based price discrimination in mobile calls in 2012. This paper discusses the antitrust process that led to this prohibition and analyzes its merits. We characterize the discriminatory plans that the largest mobile company in Chile—Movistar—offered in 2010, when the legal dispute began, calibrate a competition model for the Chilean market—both for pre- and post-paid customers—and compare the observed price differentials with those which are justifiable on competitive grounds. The main result is that in most plans, efficiency and strategic reasons could explain the observed differential only for large call externality parameter values. We also discuss Competition Court rulings in the context of several other changes that affected the mobile telephony market in Chile and report the evolution of several key market indicators after the ban was introduced.

中文翻译：

---

智利禁止网外/网上价格歧视†

摘要

智利反托拉斯当局于2012年禁止在移动电话中基于终止价格的歧视。本文讨论了导致这一禁令的反托拉斯程序，并分析了其优点。我们描述了智利最大的移动公司Movistar于2010年提出的歧视性计划，当时法律纠纷开始了，为智利市场（包括预付费和后付费客户）校准了竞争模型，并比较了观察到的价格差异与那些基于竞争理由是合理的。主要结果是，在大多数计划中，效率和战略原因只能解释大呼叫外部性参数值所观察到的差异。