学科分类

已选分类 经济学
单选题从产权角度来看,国有企业的最根本所有者是
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单选题我国社会主义初级阶段的基本经济制度是由( ) 决定的
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单选题在短期生产的边际报酬递减阶段, STC曲线( )
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单选题当经济发展中出现有效需求不足时, 需要( ), 以刺激经济增长, 增加就业
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单选题布雷顿森林体系规定会员国汇率波动幅度为( )
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单选题序数效用理论认为,不同消费者从相同商品中获得的效用大小( )。
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单选题马克思主义经济学分析方法是( )
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单选题现代企业制度的核心是
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单选题Everyday some 16m barrels of oil leave the Gulf through the Strait of Hormuz. That is enough to fill a soft-drink can for everyone on earth, or to power every motor vehicle on the planet for 25 miles (40kin). Gulf oil accounts for 40% of global trade in the sticky stuff. More important, it makes up two-thirds of known deposits. Whereas at present production rates the rest of the world's oil reserves will last for a mere 25 years, the Gulf's will last for 100. In other words, the region's strategic importance is set to grow and grow. Or at least so goes the conventional wisdom, which is usually rounded out with scary talk of unstable supplies, spendthrift regimes and a potential fundamentalist menace. Yet all those numbers come with caveats. A great deal of oil is consumed by the countries that produce it rather than traded, so in reality the Gulf accounts for less than a quarter of the world's daily consumption. As for reserves, the figures are as changeable as a mirage in the desert. The most comprehensive research available, conducted by the US Geological Survey, refers to an "expected" total volume for global hydrocarbon deposits that is about double current known reserves. Using that figure, and throwing in natural gas along with oil, it appears that the Gulf contains a more moderate 30% or so of the planet's future fossil-fuel supplies. Leaving out the two Gulf states that are not covered in this survey--Iran and Iraq--the remaining six between them hold something like 20% of world hydrocarbon reserves, not much more than Russia. All the same, it is still a hefty chunk; enough, you might think, to keep the people living atop the wells in comfort for the foreseeable future. But you might be wrong. At present, the nations of the Gulf Cooperation Council have a combined national income roughly equal to Switzerland's, but a population which, at around 30m, is more than four times as big. It is also the fastest-growing on earth, having increased at nine times the Swiss rate over the past quarter-century. Meanwhile the region's share of world oil trade has fallen, as has the average price per barrel. As a result, the income per person generated by GCC oil exports has been diminishing since the 1970s. True, surging demand from America and Asia has recently boosted the Gulf's share of trade, but the medium-term outlook for oil pries remains weak. Combined with continued growth in oil consumption, this should create sustained upward pressure on prices. And high oil prices will speed the search for alternatives. Who knows, in 20 years' time fuel cells and hydrogen power may have started to become commercial propositions.
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单选题依据厂商能否对所有的生产要素加以调整,成本可以被区分为_______。
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单选题可选择性货币政策工具不包括( )
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单选题企业的职工所赚的钱是计入成本的工资,老板所赚的钱是不计入成本的利润。成本若高,利润就低了;利润若高,成本就低了。 如果以上陈述为真,最有力地支持了以下哪项结论?______
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单选题某工人在工资率为每小时2美元的时候每周挣80美元,每小时3美元的时候每周挣105美元,由此可以断定( )
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单选题资本国际流动的主要形式包括________。①国家资本输出与私人资本输出②长期资本流动与短期资本流动③直接资本流动与间接资本流动④国际商品流动和人力资本流动
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单选题二元经济结构是指_______。
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单选题根据国际费雪效应,一国通货膨胀率上升,该国名义利率和货币对外价值的变化为( )
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单选题在两个人(A和B) 、 两种商品(X和Y) 的经济中, 交换和生产的帕累托最优条件是( )
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单选题经济政策的具体目标包括( )
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单选题利用货币对外贬值调节一国国际收支逆差,需要符合马歇尔勒纳条件,即本国出口的价格弹性与本国进口的价格弹性之和的绝对值
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单选题设随机变量X的密度函数为f(x),且f(x)为偶函数,X的分布函数为F(x),则对任意实数a,有______.A.B.C.F(-a)=F(a)D.F(-a)=2F(a)-1
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