Market power of digital platforms
讨论了经济学家用于评估市场势力的指标在数字平台情境下的适用性，重点关注根深蒂固的市场势力及潜在竞争的约束作用，并探讨了平台市场势力的跨境问题。
Abstract Digital platforms have reshaped many product markets and play an increasingly important role in economies around the globe. Some of these platforms have become powerful players and may possess a lot of market power. Economists use a number of indicators to assess market power. In this article we discuss to which extent these indicators are helpful in the context of digital platforms. In particular, we focus on assessing entrenched market power and the role of potential competition to constrain this power. Finally, we discuss some cross-border issues of platform market power.