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第六章 开放经济 PowerPoint PPT Presentation


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第六章 开放经济. 国际贸易和国际资本流动 小国开放经济模型 汇率 大国开放经济模型. 第一节 国际贸易与国际资本流动. 一、开放条件下的总支出 在开放条件下,一国的总产出从支出的角度来看,可以由四部分构成: Y =(C – C f )+(I–I f )+(G–G f )+EX ( 6.1 ) 上式是国民收入账户中的一个会计恒等式,对各变量的定义使得等式自然成立。进而可以写成如下形式: Y=C+I+G+EX–(C f –I f –G f ) ( 6.2 ) Y=C+I+G+NX ( 6.3 ). 二、对外净投资与净出口

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第六章 开放经济

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  • Y =(CC f )+(II f )+(GG f )+EX6.1

  • Y=C+I+G+EX(C f I f G f )6.2

    Y=C+I+G+NX 6.3


  • (6.3)

    YCG=I+NX (6.4)

  • S

    S=I+NX (6.5)

  • I

    SI=NX (6.6)




  • r*,r = r*


S 6.3I(r*)

6.3r* rcISIS

r

S

E'

r*

E

rc

I (r*)

0

IS

6.3


:


S=YC(YT)GNX=SI6.4

r

S2

S1

E'

rc

E

r*

I (r*)

0

IS

6.4


NX=SI,6.5

r

S

E'

E

I (r*)

0

IS

6.5


1.

  • 1= x

  • 100= x


2 .


  • eP()P*()

    =e(P/P*) (6.10)


1.

  • 1PP*

  • 26.6

  • 6.6 NX


NX ()

0

NX

6.6


2.

  • 12

  • 12NX=SISI

  • 6.7


SI

NX ()

0

NX

6.7


1 . (SI)6.8

S2I

S1I

NX ()

0

NX2

NX1

NX

6.8


2 . 6.9

S1I

S2I

NX ()

0

NX1

NX2

NX

6.9


SI

NX2 ()

NX1 ()

0

NX0

NX

6.10


  • =e(P/P*)

    e=(P*/P) (6.11)

  • (6.11)6.11


(6.12)


(NFI )6.11NFI


r

NFI(r)

0

NFI

6.11



  • 1.

  • S=I+NFI


r

6.13SINFIr*

r*

I(r)+NFI(r)

0

S,I+NFI

6.13


2.

NX=S I

NX S INFI

NX () = NFI

=

6.14


NFI

NX()

0

NX0

NX

6.14

e= (P*/P)

123


r

r

S

b

NFI(r)

I+NFI

0

0

NFI

S, I+NFI

a

NFI

NX()

0

NX0

NX

c


1.


S2

S1

r

r

r2

b

r2

r1

r1

NFI(r)

I+NFI

0

0

NFI2

NFI1

NFI

S, I+NFI

a

NFI2

NFI1

NX()

0

NX2

NX1

NX

c


2.

6.156.15NXNX1NX212 NFI

NFI(r)

NX2 ()

NX1 ()

0

NX0

NX

6.15


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