If demand for a good increases when incomes rise and decreases when incomes fall, the good is called a(n) ______ good.

Two parties can capture gains from specialization and trade whenever: a. One party is twice as good as producing all goods as the other

b. The opportunity costs of producing each good are the same for both parties. c. Both parties can produce equal amounts of both goods. d. None of the above are true.

Mexico and the members of OPEC produce crude oil. Realizing that it would be in their best interests to form an agreement on production goals, a meeting is arranged and an informal, verbal agreement is reached. If both Mexico and OPEC abide by the agreement, then OPEC's profit will be $200 million and Mexico's profit will be $100 million. If both Mexico and OPEC cheat on the agreement, then OPEC's profit will be $175 million and Mexico's profit will be $80 million. If only OPEC cheats, then OPEC's profit will be $185 million, and Mexico's profit will be $60 million. If only Mexico cheats, then Mexico's profit will be $110 million, and OPEC's profit will be $150 million. You may find it helpful to fill in the payoff matrix below. 

src="https://qoschin.com/media/4/ppg__rrr0818190951__f1q385g1.jpg" alt="" style="vertical-align: 0.0px;" height="203" width="377" />This game is ________ because ________. A. not a prisoner's dilemma; cheating is better for both B. a prisoner's dilemma; not cheating is better for both C. not a prisoner's dilemma; OPEC does not have a dominant strategy D. a prisoner's dilemma; cheating is better for both