Connectivity in the Commercial Internet
研究了互联网骨干市场，通过扩展Katz-Shapiro网络模型分析主导骨干网的策略，发现大型骨干网偏好低质量互联，并可能采取针对性降质策略，且结论在客户多宿情况下依然稳健。
We study the ‘backbone market’ in the Internet. After discussing the structure of the Internet, we use an extension of the Katz‐Shapiro network model to analyze the strategies that would be used by dominant backbone. We show that a larger backbone prefers a lower quality interconnection than the smaller one. We then analyze a ‘targeted degradation’ strategy where the larger backbone lowers the quality of interconnection to its smaller rivals in turn. Finally, we show that the qualitative results are robust to the possibility of ‘multihoming’ by clients.