(Collusion and Cartels) Why would each of the following induce some members of OPEC to cheat on their cartel agreement?

A) Newly joined cartel members are less-developed countries.

B) The number of cartel members doubles from 12 to 24.

C) International debts of some members grow.

D) Expectations grow that some members will cheat.

(Collusion and Cartels) Use revenue and cost curves to illustrate and explain the sense in which a cartel behaves like a monopolist.