里根和杰森都种植花卉和制作陶瓷花瓶,但里根更擅长生产这两种产品。在这种情况下,贸易可以
A. 对杰森和里根都有好处。
B. 有利于杰森,但不是里根。
C. 有利于里根,但不是杰森。
D. 对杰森和里根都没有好处。
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如果天然气价格上涨,什么时候需求的价格弹性可能最高?
A. 涨价后立即
B. 涨价后一个月
C. 涨价后三个月
D. 涨价一年后
对商品征税
A. 导致卖方的有效价格增加。
B. 影响商品买者的福利但不影响卖者的福利。
C. 导致该物品的均衡数量减少。
D. 造成通常完全由商品卖方承担的负担。
A production possibilities frontier can shift outward if
A. government increases the amount of money in the economy.
B. there is a technological improvement.
C. resources are shifted from the production of one good to the production of the other gooD.
D. the economy abandons inefficient production methods in favor of efficient production methods.
When each person specializes in producing the good in which he or she has a comparative advantage, total production in the economy
A. falls.
B. stays the same.
C. rises.
D. may fall, rise, or stay the same.
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