第十五章 宏观经济政策

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  • Q

  • G=TG>TG
  • 1 TBg Bg = Bg-1 + r Bg-1 + T ( G + Ig) 15.1 rTGIg = + + DgDg = - Bg Dg = - Bg = Dg -1 + r Dg-1+ G + Ig T

  • Dg Dg-1 = G + r Dg-1 + Ig T 15.2 Dg Dg-1DEF DgSgT rDg-1 GSg = (T - rDg-1) G15.2 DEF = Dg - Dg-1 = Ig Sg 15.3

  • 2 1 G

  • GE0GE1BY0Y1 YG

  • 1957Permanent Income C1 + C2 / (1+r) = (Q1 T1) + Q2 T2/1+r T1T2(Time Path)

  • Crowding Out Effect 1 2 ISISISYr

  • IS-LM(r1Y1)ISIS,LM(r2Y2) ISLMY1Y2Y1Y3

  • Y2Y3r1r2Growing Out Effect L2

  • 3 ISLMLM ISIS

  • Robert Barro1974 1

  • 2 C1 + C2 / (1+r) = (Q1 T1) + (Q2 T2)/ (1+r) G1 + Ig1 + (G2 + Ig2) / (1+r) = T1 + T2 / (1+r) + Dg2 / (1+r)15.5

  • 2T1+T1T2C1C2T1T2

  • 3

  • 4

  • 1

  • 2CPIPPIGNP Deflator 3 4

  • ()

  • Fiscal Policy

  • 2030

  • 2Automatic Stabilizers

  • (Monetary Policy)

  • (1) Open Market Operations

  • (2) Reserve Requirement (3) Rediscount Rate

  • (4) Moral Suasion (5) (Window Guidance)

  • 1 2 3

  • ISLM

  • 1234

  • 1 Inside LagRecognition Lag(Decision Lag)(Action Lag)

  • Outside LagMrIEY

  • 2Lucas Critique 2070

  • 1 2 Time InconsistencyF. E. KydlandE. C. Prescott1977