The cross elasticity of demand for substitutes is always positive.
Indicate whether the statement is true or false
Question 2
Which of the following statements is TRUE?
A) Perfectly competitive markets are efficient, but monopoly markets never are efficient.
B) Perfectly competitive markets always reach equilibrium but monopoly markets never reach equilibrium.
C) Perfect price discriminating monopolists can eliminate all deadweight losses and achieve efficiency.
D) All the above statements are true.