现代产业经济学系列讲座第261期
时 间：2024年4月17日（周三） 15:00-16:30
地 点： 史带楼303室
题 目：Network interoperability in multi-sided markets
主讲人：周俊杰 教授（清华大学经济管理学院）
主持人：陆卓然 助理教授
摘 要：
We study network interoperability in a general framework of multi-sided platforms. The equilibrium prices in such a framework often exhibit “cross-subsidization” among multiple sides of users. We show that the impact of network interoperability on prices and welfare depends on the shape of network externality functions and the degree of market fragmentation. If network externalities obey diminishing marginal effects or if the market is highly fragmented, interoperability weakens cross-subsidization. This raises prices and reduces surplus for user sides that generate positive outbound externalities, but reduces prices and raises surplus for user sides that generate negative outbound externalities. Under the opposite market conditions, interoperability strengthens cross-subsidization, reversing the price and surplus implications above. Similar insights apply when considering network interoperability wideness (i.e., more platforms engage in the same interoperability coalition). We use the framework to examine the divergence between private and social incentives for interoperability, among other regulatory issues.
个人简介：
周俊杰，清华大学经济管理学院教授，主要研究领域为社会经济网络和产业组织理论，在Review of Economic Studies、JET、Rand、AEJ-Micro、OR和M&SOM等经济学和运筹学期刊发表多篇论文。目前担任Rand, IJIO和 JIndE的副主编。
应用经济学系
2024-4-10
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