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设在一个经济体系中, 货币需求函数为:L(Y,i)=1.5Y-100i 储蓄函数为:S=0.2Y 投资函数为:I=4-40i
设在一个经济体系中,
货币需求函数为:L(Y,i)=1.5Y-100i
储蓄函数为:S=0.2Y
投资函数为:I=4-40i
货币量和价格水平之比为:M/P=6
请求出实际收入和利率。若货币量M=24,请求出产品市场总需求函数Yd。(Y:实际收入;i:利率;S:储蓄;I:投资;M:投资量;P:价格水平)
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![](https://img2.soutiyun.com/shangxueba/ask/11001001-11004000/11001361/ct_kgxzykxjz2003sc_kgxzykxjcomp_00118(201010).jpg)
![](https://img2.soutiyun.com/shangxueba/ask/11001001-11004000/11001361/ct_kgxzykxjz2003sc_kgxzykxjcomp_00118(201010)1.jpg)
据S=0.2Y,I=4-40i,以及S=I,可得。 0.2Y=4-40i Y=20-200i…………………………………………(1)(IS) 根据L=1.5Y-100i,M/P=m=6以及L=m,可得: 1.5Y-100i=6 Y=4+
![](https://img2.soutiyun.com/shangxueba/ask/11001001-11004000/11001361/ct_kgxzykxjz2003sc_kgxzykxjcomp_00118(201010).jpg)
![](https://img2.soutiyun.com/shangxueba/ask/11001001-11004000/11001361/ct_kgxzykxjz2003sc_kgxzykxjcomp_00118(201010)1.jpg)
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