A network externality occurs when A) the usefulness of a good ...

[Lobcity]

A network externality occurs when
 
  A) the usefulness of a good is affected by celebrities who use the good.
  B) there is production cost savings from being networked with buyers.
  C) the usefulness of a good is affected by how many other people use the good.
  D) there is production cost savings from being networked with suppliers.

Question 2

A monopolistically competitive firm earning profits in the short run will find the demand for its product decreasing and becoming more elastic in the long run as new firms move into the industry until
 
  A) the original firm is driven into bankruptcy.
  B) the firm's demand curve is perfectly elastic.
  C) the firm exits the market.
  D) the firm's demand curve is tangent to its average total cost curve.

[Dnite]

Answer to Question 1

C

Answer to Question 2

D