Which business model relies on onboarding a large, diverse participant base to facilitate exchanges?

• A. B2B Software
• B. Brick-and-Mortar Retail
• C. Marketplace and Platforms
• D. Private Label Brands

Answer: (C)

The key idea here is a marketplace or platform model that grows in value as more participants join. When a platform brings together a large and diverse mix of buyers, sellers, or service providers, it creates liquidity and variety—more people to buy from, more goods or services to choose from, and more opportunities for transactions. This network of participants is what enables exchanges to happen smoothly: the platform supplies the structure for matching demand with supply, processing payments, and often providing trust through ratings, reviews, and rules. As the participant base expands, the platform becomes more useful, attracting even more users in a positive feedback loop. That’s why onboarding a broad, varied community to facilitate exchanges is the defining characteristic of marketplace and platform models.

Other business models don’t hinge on that same multi-party exchange dynamic. B2B software focuses on delivering a product or service to other businesses, not on connecting a wide, diverse set of buyers and sellers for ongoing exchanges. Brick-and-mortar retail centers on selling products directly through a physical store or chain, without the same emphasis on enabling broad exchanges among many independent participants. Private label brands develop, own, and market their own products rather than creating a platform where a wide array of independent parties transact with each other.