As more and more firms have acquired fax machines, the fax ...

[scienceeasy]

As more and more firms have acquired fax machines, the fax machine has become a standard means of business communication. The increase in demand for fax machines for business communication:
 
  A) is an example of the snob effect.
  B) proves that the fax machine is an inferior good.
  C) proves that the fax machine is a luxury good.
  D) is an example of a positive network externality.
  E) is an example of a negative network externality.

Question 2

In principle, a list of absolute necessities should change regularly over time.
 
  Indicate whether the statement is true or false

[aadams68]

Answer to Question 1

D

Answer to Question 2

F

[scienceeasy]

Excellent

[abro1885]

Gracias!