移动电信中的市场结构、投资与技术效率

中文摘要

我们构建了一个移动网络运营商之间在价格与基础设施方面进行竞争的模型。尽管合并会增强市场势力，但由于规模经济，它可能带来更高效的数据传输，而规模经济源自物理原理。在利用法国消费者与基础设施数据估计该模型后，均衡模拟显示，价格随企业数量增加而下降，下载速度亦然。我们的框架还使我们能够量化频谱分配的影响。在我们的模型中，频谱的边际社会价值超过企业的支付意愿，也超过频谱拍卖中观察到的价格。

Abstract

We develop a model of competition in prices and infrastructure among mobile network operators. Although consolidation increases market power, it can lead to more efficient data transmission due to economies of scale, which we derive from physical principles. After estimating our model with French consumer and infrastructure data, equilibrium simulations reveal that while prices decrease with the number of firms, so do download speeds. Our framework also allows us to quantify the impact of spectrum allocation. The marginal social value of spectrum exceeds firms’ willingness to pay in our model as well as observed prices in spectrum auctions.