关键词: 双边市场, 平台合作, Hotelling模型, 固有收益, 多归属

Abstract: Considering the fact that inter-industry platform cooperation improves users' intrinsic benefit, the paper constructs a duopoly model with consumer multi-homing to analyze economic effects of the cooperation. The analysis shows that as the intrinsic benefit of users on the cooperation platform increases, not only prices on its both sides, but its asymmetry of pricing structure and demand will rise. But as to the non-cooperation platform, inter-industry platform cooperation drives prices on its both sides and demand on the single-homing side fall. We also find that if the difference between cooperation platform and non-cooperation platform is large enough on the single-homing side, the non-cooperation platform will decrease the price of this side more than that of the other side. Otherwise, the non-cooperation platform will decrease the price of the multi-homing side more than that of the single-homing side. The paper also indicates that inter-industry platform cooperation improves the profit of the cooperation platform, reduces the profit of the non-cooperation platform, and enhances the consumers' surplus and social welfare. This reminds the regulatory agency that it should pay more and more attention to public policies on cooperation in two-sided market to avoid excessive interference.

Key words: two-sided markets, platform cooperation, Hotelling model, intrinsic benefit, multi-homing