单选题假定货币供给量不变，货币的交易需求和预防需求增加将导致货币的投机需求

单选题下列因素中，使得总需求曲线向右移的是( )。 A．货币供给量的增加 B．增加资本品获利能力和技术进步 C．废除一项投资税减免 D．价格水平下降

单选题如果边际储蓄倾向为0.3，投资支出增加60亿元，可以预期，这将导致均衡GDP增加

单选题就整个经济来说，经济增长的机会成本是( )。 A．未来人们的生活水准下降 B．导致自然资源的短缺 C．降低人们目前的消费标准 D．必然导致贫穷

单选题根据总供求模型，扩张性货币政策使价格水平

单选题理性预期学派的代表人物是 。

单选题下列观点不正确的是( )。 A．当价格水平的上升幅度大于名义货币的供给的增长时，实际货币供给减少 B．当名义货币供给的增长大于价格水平的上升时，实际货币供给增加 C．在其他条件不变的情况下，价格水平上升，实际货币供给减少 D．在其他条件不变的情况下，价格水平下降，实际货币供给减少

单选题在公债能否影响经济的问题上， 。

单选题国民经济的均衡必须作到 。

单选题实际利率与储蓄之间的关系为 。

单选题在完全预期的情况下，通货膨胀有利于

单选题假定总供给曲线为水平，边际储蓄倾向为0.25，若自发性支出增加10亿美元，则均衡国民收入增加( )。 A．2.5亿美元 B．0亿美元 C．250亿美元 D．40亿美元

单选题如果边际储蓄倾向为0．3，投资支出增加60亿元，这将导致均衡收入GDP增加 。

单选题在统计中，社会保险税增加对( )项有影响。 A．国内生产总值(GDP) B．国内生产净值(NDP) C．国民收入(NI) D．个人收入(PI)

单选题下列哪一项不能计入当年的国内生产总值( )。 A．当年整修过的古董汽车所增加的价值 B．一辆新汽车的价值 C．一辆二手汽车按其销售价格的价值 D．一台磨损的高尔夫球清洁器的替换品

单选题在社会生产能力过剩的情况下，收入分配趋于平等则会

单选题公共储蓄等于( )。 A．税收加上政府转移支付减去政府购买 B．税收减去政府转移支付减去政府购买 C．税收加上政府转移支付加上政府购买 D．政府预算赤字

单选题假设已实现充分就业，且总供给曲线为一垂直线，当名义货币供给增加20/%时，( )。 A．价格水平不变 B．利率增加 C．名义工资增加20/% D．实际货币供给增加20/%

单选题根据新古典模型，人口增长率的提高快于储蓄率的提高将 。

单选题Current Group, a Germantown-based technology firm, has taken over an ordinary looking house in Bethesda and turned it into a laboratory for smart-grid technology, the system the company believes will bring the nation's electricity grids into the digital age. In the front yard stands a utility pole hooked up to a special transformer that connects the power lines to high-speed Internet. Hundreds of sensors attached to the lines monitor how power flows through the home. That information is then sent back to the utility company. The process lets a utility more efficiently manage the distribution of electricity by allowing two-way communication between consumers and energy suppliers via the broadband network on the power lines. Based on data they receive from hundreds of homes, utilities can monitor usage and adjust output and pricing in response to demand. Consumers can be rewarded with reduced rates by cutting back on consumption during peak periods. And computerized substations can talk to each other so overloaded circuits hand off electricity to those that have not fully loaded, helping to prevent blackouts. Some utility companies have launched initiatives to give consumers data about their energy consumption habits in an effort to lower energy bills. Smart-grid technology takes such programs further by automating electricity distribution, which would make grids more reliable and efficient. By partnering with utilities, the company hopes to tap into $4.5 billion in stimulus grants intended to encourage smart-grid development. When he announced the funding, President Obama pointed to a project in Boulder, Colo. , as an example of a successful smart-grid experiment. Current is one of the companies working on the project. Current's chief executive Tom Casey believes the technology will help utility companies better distribute electricity produced by renewable resources, such as solar panels or wind farms. " A smart grid's system can be paired up with the renewable resources so that when the renewable source is varying, the overall load can be varied as well, " Casey told the House Select Committee on Energy Independence and Global Warming. " This will reduce or eliminate the need for backup coal or gas-based power generation plants. /