The negative slope of the production possibilities frontier represents

1.The opportunity cost of obtaining more of one good is shown on the production possibilities frontier as the选项： A:amount of the other good that must be given up.; B:market price of the additional amount produced.; C:amount of resources that must be devoted to its production.; D:number of dollars that must be spent to produce it.

2.The idea that tradeoffs have to be made when resources are scarce is reflected in the fact that:A.points below the production possibilities curve are inefficient.B.points below the production possibilities curve are efficient.C.the production possibilities curve has a negative slope.D.the slope of a linear production possibilities is constant.

3.The idea that tradeoffs have to be made when resources are scarce is reflected in the fact that:选项： A:points below the production possibilities curve are inefficient.; B:points below the production possibilities curve are efficient.; C:the production possibilities curve has a negative slope.; D:the slope of a linear production possibilities is constant.

4.NullA country has a comparative advantage in the production of a good if it can 选项： A、produce more of the good than another country. B、produce more of the good most efficiently. C、produce the good on and remain on its production possibilities frontier. D、produce the good at the lowest opportunity cost.

5.Which of the following is a correct statement about production possibilities frontiers?选项： A:An economy can produce only on the production possibilities frontier.; B: An economy can produce at any point inside or outside a production possibilities frontier.; C:An economy can produce at any point on or inside the production possibilities frontier, but not outside the frontier.; D:An economy can produce at any point inside the production possibilities frontier, but not on or outside the frontier.

6.____________ is the amount of one commodity that a nation must give up to produce each additional unit of another.（）选项： A、marginal rate of return B、production frontier C、marginal cost D、marginal rate of transformation (MRT)

7._______________ cause a nation to give up more and more of one commodity in order to produce each additional unit of another.（）选项： A、Increasing opportunity costs B、Costs of production C、Constant opportunity costs D、Decreasing opportunity costs

8._______________ cause a nation to give up more and more of one commodity in order to produce each additional unit of another.（）选项： A:Increasing opportunity costs B:Decreasing opportunity costs C:Constant opportunity costs D:Costs of production

9.The marginal rate of transformation() of X for Y refers to: 选项： A: the amount of Y that a nation must give up to produce each additional unit of X B: the opportunity cost of X C: the absolute slope of the production frontier at the point of production D: all of the above

10.5. The marginal rate of substitution MRS of X for Y in consumption refers to the:( ) 选项： A、 the amount of Y a nation must give up to produce each additional unit of X B、amount of Y that a nation must give up for one extra unit of X and still remain on the same indifference curve C、the absolute slope of the production frontier at the point of production D、all the above

11.The production possibilities frontier is a downward-sloping straight line when 选项： A、it is possible to switch between one good and the other good at a constant rate. B、there is no tradeoff involved in switching between one good and the other good. C、the same amount of time is required to produce a unit of one good as is required to produce a unit of the other good. D、the person for whom the frontier is drawn wishes to consume equal amounts of the two goods.

12.The marginal rate of transformation (MRT) of X for Y refers to: 选项： A: the amount of Y that a nation must give up to produce each additional unit of X B:the opportunity cost of X C:the absolute slope of the production frontier at the point of production D:all of the above

13.Which of the following is not a reason for increasing opportunity costs:选项： A: technology differs among nations; B:factors of production are not homogeneous; C:factors of production are not used in the same fixed proportion in the production of all commodities; D: for the nation to produce more of a commodity, it must use resources that are less and less suited in the production of the commodity

14.The marginal rate of transformation (MRT) of X for Y refers to:A.a. the amount of Y that a nation must give up to produce each additional unit of XB.b. the opportunity cost of XC.c. the absolute slope of the production frontier at the point of productionD.d. all of the above

15.According to the theory of comparative advantage, 选项： A、a nation can gain from trade if it is equally inefficient in producing two goods. B、a nation must have an absolute advantage in at least one good to gain from trade. C、All of the above. D、a nation should produce the goods at which it is most efficient.

16.A nation engaging in trade according to the Ricardian model will find its consumption bundle ___________.选项： A:inside its production possibilities frontier.; B:on its production possibilities frontier.; C:outside its production possibilities frontier.; D:inside its trade-partner's production possibilities frontier.

17.30. All points on a production possibilities frontier show the ( )a. maximum satisfaction that households receive from their purchases of goods.b. minimum quantities of resources that must be used to produce a given quantity of output.c. maximum output that society can produce with given resources and technology.d. minimum output that society can produce with given resources and technology.

18.The bowed shape of the production possibilities frontier can be explained by the fact that ( )选项： A:all resources are scarce.; B:economic growth is always occurring.; C:the only way to get more of one good is to get less of the other.; D:the opportunity cost of one good in terms of the other depends on how much of each good the economy is producing.

19.The bowed shape of the production possibilities frontier can be explained by the fact that选项： A:all resources are scarce.; B:economic growth is always occurring.; C:the opportunity cost of one good in terms of the other depends on how much of each good the economy is producing.; D:the only way to get more of one good is to get less of the other.

20.The bowed shape of the production possibilities frontier can be explained by the Fact that 选项： A: all resources are scarce. B:economic growth is always occurring. C: the opportunity cost of one good in terms of the other depends on how much Of each good the economy is producing. D: the only way to get more of one good is to get less of the other.

21.The production possibilities frontier选项： A:is the boundary between attainable and unattainable levels of production.; B: is the boundary between what we want to consume and what we want to produce.; C:shows how production increases as prices rise.; D:shows prices at which production is possible and impossible.; E: illustrates why there need not be any scarcity in the world.

22.The production possibilities frontier 选项： A、is the boundary between attainable and unattainable levels of production. B、 is the boundary between what we want to consume and what we want to produce. C、shows how production increases as prices rise. D、shows prices at which production is possible and impossible. E、 illustrates why there need not be any scarcity in the world.

23.Generally, on a linear two-good production possibilities curve, the opportunity cost of the good measured on the vertical axis is:选项： A:the negative of the opportunity cost of the good measured on the horizontal axis.; B:one minus the opportunity cost of the good measured on the horizontal axis.; C:the absolute value of the slope of the production possibilities curve.; D:the reciprocal of the opportunity cost of the good measured on the horizontal axis.

The negative slope of the production possibilities frontier represents the idea 选项： A: that free lunches are possible. B: of tradeoffs, that in order to produce more of one good, the nation must produce less of another. C: of unemployment. D: of inefficient production.

The negative slope of the production possibilities frontier represents the idea
选项：

A: that free lunches are possible.
B: of tradeoffs, that in order to produce more of one good, the nation must produce less of another.
C: of unemployment.
D: of inefficient production.