Are dominant platforms good for consumers?
通过构建双边市场模型，研究发现当网络效应适中时，主导平台比市场平分更有利于提高消费者剩余和社会总福利，且网络效应越强效果越明显。
Abstract We develop a two‐sided market model where both platforms and sellers charge buyers for access. When network effects are moderate, a dominant platform that attracts more sellers and buyers is more likely to arise. Compared to when platforms split the market equally, a dominant platform always leads to higher consumer surplus and total welfare. Moreover, both of these measures improve as network effects increase. Our results suggest that competition authorities should be cautious regarding complaints related to dominant platforms in two‐sided markets, as they may be good for consumers.