What is multi-homing in platform markets?

• A. A user participates on multiple platforms
• B. A platform hosts multiple sides of the market
• C. A platform restricts users to one platform
• D. A platform merges with competitors

Answer: (A)

Multi-homing means a user or provider uses more than one platform for the same activity. In practice, you might ride with both Uber and Lyft, or sell on multiple marketplaces, to compare prices, save costs, or avoid being stuck if one platform has issues. This behavior reduces platform lock-in and can increase competition, since no single platform can easily dictate terms if alternatives exist.

The option describing a user participating on multiple platforms captures this idea. The other statements refer to different concepts: a platform hosting multiple sides describes a multisided platform structure, not the act of using multiple platforms; restricting users to one platform is the opposite of multi-homing (single-homing); merging with competitors is about consolidation, not using multiple platforms.