What is the term for an e-commerce model in which individual consumers sell products or services to other consumers?

The term that describes an e-commerce model where individual consumers sell products or services to other consumers is Consumer-to-Consumer (C2C). This model typically involves platforms that facilitate transactions between consumers, allowing them to engage in buying and selling directly with each other. Examples of C2C platforms include eBay, Craigslist, and Etsy, where users can list items for sale and others can purchase them.

In contrast, the other e-commerce models mentioned do not fit this definition. Business-to-Business (B2B) refers to transactions where businesses sell products or services to other businesses. Business-to-Consumer (B2C) involves businesses selling directly to consumers, such as well-known online retailers like Amazon. Government-to-Consumer (G2C) is focused on transactions between government entities and consumers, and is often associated with services like tax payments or license renewals. Therefore, the C2C model is specifically identified by the direct interaction and transaction between individual consumers, making it the correct answer.