Venmo, Lending Tree, Yahoo Finance, and FICOfor each of these companies, in light of platform-completeness, discuss whether they have complete or incomplete platforms.

Having more users does not necessarily increase the benefits for existing users. For example, take Uber. At a specific time, a high number of customers looking for rides will increase the cost per ride for each customer. Evaluate the validity of this statement by considering both indirect and direct effects of the 2-sided network effect.

Discuss how the network effect made Facebook so strong. What are the potential challenges, and how can they threaten the defensibility of Facebook and its network effect?