关键词: 互联网, 互联互通, 直联, 转接, 成本原则, 竞争原则, 网络外部性

Abstract: This paper develops a simple theoretical model of game to analyze the policy decision of interconnection between two IBPs (Internet backbone providers). Based on the maximization of profits, they decide whom they want to peer with and who has to pay transit with cost principle. Furthermore, the paper compares IBPs policy decision behavior of interconnection under different decision principles (cost principle and competition principle). The conclusion indicates in the initial stage of development of Internet, IBPs adopt the competition principle to make the policy decision of interconnection, and later in the certain stay of development in Internet, at this moment when most users connect to the Internet, IBPs adopt cost principles to carry on the policy decision of interconnection. Different user structures of two IBPs make their focal points in the decision of interconnection different.

Key words: Internet, interconnection, peering, transit, costprinciple, competitionprinciple, networkexternality