A Network Effect Exists Whenever

Multiple Choice

A network effect exists whenever

A) a firm's willingness to produce a particular good or service is influenced by the costs of inputs it must utilize in order to manufacture the item.
B) a consumerʹs willingness to purchase a particular good or service is influenced by how many others also buy or have bought the item.
C) a firm's willingness to purchase a particular factor of production depends on the other types of inputs it utilizes to manufacture an item.
D) a consumer's willingness to purchase a particular good or service is influenced by the prices of other complementary or substitute items.