网络非中立性之争的经济学分析
Network Non-neutrality Debate: An Economic Analysis
摘要：
研究了双边非中立市场中互联网服务提供商（ISP）向内容提供方（CP）收取内容传输费用的经济效用和服务质量（QoS）问题。我们提出了一个双边市场，其中涉及CP，ISP，最终用户和广告商的新模型。CP可以具有订阅收入模型（向最终用户收费）或广告收入模型（向广告商收费）。我们制定的ISP和CP之间的相互作用作为一个非合作的博弈问题，前者和后者的优化问题。我们的分析表明，收入模式的CP起着重要的作用，在一个非中立的互联网。在订阅模式下，ISP和CP在同时存在侧付费的情况下都接收到更好（或更差）的效用以及QoS。然而，在广告模式下，附加费用阻碍了CP对其内容的投资。
英文摘要：
This paper studies the economic utilities and the quality of service (QoS) in a two-sided non-neutral market where Internet service providers (ISPs) charge content providers (CPs) for the content delivery. We propose new models on a two-sided market which involves a CP, an ISP, end users and advertisers. The CP may have either the subscription revenue model (charging end users) or the advertisement revenue model (charging advertisers). We formulate the interactions between the ISP and the CP as a noncooperative game problem for the former and an optimization problem for the latter. Our analysis shows that the revenue model of the CP plays a significant role in a non-neutral Internet. With the subscription model, both the ISP and the CP receive better (or worse) utilities as well as QoS in the presence of side payment at the same time. However, with the advertisement model, the side payment impedes the CP from investing on its contents.
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