学习高级宏观经济学的体会

11.IS/[e-mail]1tq2tq12()ttttpabqq=−+tatab0[][]1211212122max()max()tttttttqtttttqabqqqabqqqΠ=−+Π=−+122111,2222ttttttaaqqqqbb=−=−**123tttqqab==b.111q2tttqaαβε=++(1)2ta22ˆˆˆtqaαβ=+(2)ˆαˆβ1(2)2[]11121ˆmax()ttttttqabqqqΠ=−+(3)1ˆ(1)1ˆ22ttbqabβα−=−1*13ttqab=1tqc.(1)211122ttqqab=−+ˆαˆβ12q−12b1ˆα11q(2)1(2)21tq2112(2)11tq22tq70IS/LMAS/AD(2)(3)LucascritiquePhilipsPhilipsLucas221Lucascritique2.223.RamseyRamsey3.1Ramseya.ttrAttwLttCttttttArAwLC=+−tttaAL=ttttcCL=tnttttttawracna=+−−(4)20{}max()s.t.ttttctttttteucdtawracnaρ∞−==+−−∫(5)b.KL(,)FKL,max(,)()KLFKLrKwLδ−+−()()()rfkwfkkfkδ′=−′=−(6)kKL=()(,1)fkFKL=δc.ak=(6)(4)()()kfknkcδ=−+−0{}max()s.t.()()ttttceucdtkfknkcρδ∞−==−+−∫(7)(7)RamseyRamseyRamseyRamsey3.2RamseyRamseyRamseyRamseyOLGDiamondRamseya.RamseySolowSolowRamseyRamseySolow(1)()csfk=−sRamsey(7)()()ksfknkδ=−+(8)(8)SolowSolowb.RamseySolowRamseyInada()fkkα=()fkAk=AKTwosectorsteadystatec.RamseyRBCRamsey3{}01max()s.t.()tttcttttttuckkfknkcβ∞=+−=−−∑(9)RBCRealBusinessCycle{}01max()s.t.(,)tttctttttttEuckkfkAnkcβ∞=+−=−−∑(10)[]EitARBCRBC3calibrationRBCd.Ramsey3.1Ramsey(7)Ramsey4LucasCritiquee.RamseyRamseyMIUMoneyinUtilityCIACashinAdvanceMIU0{,}max(,)ttttttcMtMeucdtPρ∞−=∫(11)ttMPtCIARamseytttMcP≤(12)fRamseyRamseyRamseyRamseyRamsey3.3Ramseya.Ramsey3.2RamseyOLGOLGRamseyOLGRamseyOLGRamseyOLGRamseyBlanchardPerpetualYouthRamseypb.70adhocmenucostEfficiency-WageImplicitContracts3.44.RamseyRamseyRamsey0{}max()s.t.......ttttceucdtρ∞−=∫(13){}0max()s.t.......tttctucβ∞=∑(14)0{}max()s.t.......ttttcEeucdtρ∞−=∫(15){}0max()s.t.......tttctEucβ∞=∑(16)4RamseyRamsey(13)(14)35.607☺