相互关联性与投资外部性对网络安全投资策略的影响

Effects of Interconnectedness and Externality on Network Security Investment Strategy

本论文研究了相互关联性与投资外部性对网络安全投资策略的影响,论文首先分析了在投资正外部性效应和负外部性效应下两个相互关联企业的网络安全投资博弈,给出了企业网络安全投资在一定条件下具有先动优势,而在另一种条件下则具有后动优势。然后分析了多个相互关联的企业分别在正外部性效应和负外部性效应下对网络安全投资的影响,两种情况下的结论具有比较大的差别,对企业的网络安全投资策略也有不同的分析和建议。

This paper studies the impacts of interconnectedness and externality on network security investment strategy. Firstly, the paper discusses the game of network security investment of two interrelated firms under positive externality and negative externality effects conditions. The results show that the network security investment of enterprises has first-mover advantage in some certain situation and second-mover advantage in some other situations. Then, the paper analyzes the impacts of network security investment by multiple interrelated firms under positive externality and negative externality effects. The conclusions are significantly different under two situations and the paper gives different analysis and suggestions accordingly.