IS曲线IS方程R2经济学原理第20讲IS-LM模型卢锋CCER2003秋季投资预期收益下降等导致IS曲线向左下方移动 货币需求由交易动机和利率成本决定:Md = (kY – hR)P: 货币供给由货币当局决定货币市场均衡条件可以表示为:Ms = Md = (kY – hR)P省去下脚标货币市场均衡条件为:M = (kY – hR)PR = MhP kYhR1经济学原理第20讲
22Frontiers of Microeconomics ASYMMETRIC INFORMATIONA difference in access to relevant knowledge is called informationActions: Principals, Agents, and Moral HazardMoral HazardMoral hazard refers to th
Click Types of Imperfectlypetitive MarketsOligopolyOnly a few sellers each offering a similar or identical product to the petitionMany firms selling products that are similar but not identical
Click WHAT ARE COSTSEconomists measure a firms economic profit as total revenue minus total cost including both explicit and implicit measure the accounting profit as the firms total revenue minus on
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Click ? firmAttributes of MonopolisticpetitionMany sellersProduct differentiationFree entry and exit?2003 SouthwesternThomson LearningATCDemand(b) Firm Makes LossesPriceATC0P MRFigure 3 Monopol
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一IS曲线的推导e(三)IS曲线的几何推导rOS2Ie-d·r其他不变的情况下相同收入但利率高yIS曲线的方程为: y=2500-25rr(1)货币的交易需求函数 由于出于交易动机与预防性动机的货币需求量都取决于收入则可以把出于交易动机与预防性动机的货币需求量统称为货币的交易需求量并用L1来表示用Y表示实际收入那么货币的交易需求量与收入的关系可表示为:L1L(Y)=k·Yk>0
第十一章 IS—LM模型(本章不作为考试内容仅用于练习)一单项选择题1.资本是利率的减函数的含义是()A.利率越高投资成本就越低投资需求增加B.利率越低投资成本就越低投资需求增加C.利率越高投资成本就越低投资需求增加D.利率与投资没有关系2.利息率提高时投资需求将()A.增加B.不变C.减少D.不能肯定3.LM曲线是描述()A.产品市场均衡时国民收入与利息率之间的关系B.货币市场均衡时国民收入与利
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