第2题
(1)如果P=60美元/桶,天然气的自由市场价格是多少?如果价格上限为3美元/千立方英尺,无谓损失多大?
(2)石油价格应为多少,才会得到3美元的天然气自由市场价格?
In Example 9. 1 (page 290), we calculated the gains and losses from price controls on natural gas and found that there was a deadweight loss of $ 5.68 billion. This calculation was based on a price of oil of $50 per barrel.
a. If the price of oil were $ 60 per barrel,what would be the free - market price of gas? How large a deadweight loss would result if the maximum allowable price of natural gas were $3. 00 per thousand cubic feet?
b. What price of oil would yield a free - market price of natural gas of $3. 00?
第5题
在一种分析性研究中计算了RR值,可说明暴露因素与发病的关联程度,该指标为
A、发病率
B、发病密度
C、病因危险度
D、患病率
E、相对危险度
第7题
根据以下资料,回答 91~95 题。
第 91 题 2004年度,天然气产量最高的月份为()。
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