、361005VAR、、State-Space。。。VARF821.0[]A[]1007-9556201011-0027-08AssetpriceInflationandOptimalMonetaryPolicy———TheoreticalandEmpiricalStudyonChinaZHENGMingNIYu-juanDept.ofFinanceXiamenUniversityXiamen361005ChinaAbstractThepaperbuildsanopeneconomytheoreticmodelthatincludesassetpriceandmonetarypolicyandthenderivestheoptimalinterestratesettingbyoptimizationmethod.TheauthorsalsoanalyzetherelationshipamongstockpriceoutputinflationrateandmonetarypolicybyVARmodelandcalculatetheoptimuminterestratetime-variantresponsefactoragainstassetpricethroughState-Spacemethod.Theauthorsfindthatthecentralbankinterestratepolicyshouldresponsetotheassetpricepositivelyandtheresponsefactorcorrelatesnegativelywithinterestelasticityofoutputandinterestelasticityofassetintrinsicvalueandpositivelywithassetwealthvalue.Theempiricalstudiesshowthestockpricecaninfluenceinflationsignificantlyandcomparedwithmoneysupplypolicyinterestratepolicycanbetterimpactassetprice.KeyWordsassetpriceinflationoptimummonetarypolicyVARmodel2010-09-20“———”08JA7901101957-1984-。———·、2009。GDPGDP。199033GDP。20。①2010113211Nov.2010Vol.32No.11JoumalofShanxiFinanceandEconomicsUniversity27··。Modigliani1971、QTobin1969BernankeGertler1995。、。。。Friedman2001。。。2002。2004VECM、GDP、、CPIGDP、CPI、。2005。20061996~2006。。2003VARGDPCPIGDP。2009GrangerVECM“”。。。Goodfriend2005BernankeGertler1999Mishkin2007。“”Goodhart1993Smet1997KentLowe1997Cecchettietal2000。2002。2006、、、。2009BEEKGARCH、。。2004。1996~2005。20071992~2005。。。。28··、。GrangerVARState-Space。、Ball1999、KontonikasMontagnoli2006πt+1=πt+α1yt+α2Δet+εt+11yt+1=β0+β1yt-β2it-Etπt+1+β3Δet+β4qt+ωt+12qt=qt*+qtNI=qt*+bΔqt-13qt*=-γ1it-Etπt+1+γ2Etyt+1+μt4ytπtqtqt*qtNI。1εt+1。2ISWalsh1998、Ball1999、Svensson1997、KontonikasMontagnoli2006IS。。、Qβ4ωt+1。3qt*qtNIMomentumEffectsqtNIbΔqt-1b>0FrenkelMussa1985KontonikasMontagnoli2006。4μt。Ball1999L=12Et∞t=1Σδtπt2+θyt2θθ1θ1δ。yt+1=φt+ξt+1πt+1=覬t+εt+1φt=κ0-κ1it-πt+κ2yt+κ3Δet+κ4bΔqt-1覬t=πt+α1yt+α2ΔetV覬t=minφt12Et覬t+εt+12+θφt+ξt+12+δV覬t+1ΣΣs.t.覬t+1=覬t+α1φt+谆t+1覬tφt。it*=f0+fπ′πt+fy′yt+fq-q*′qt-qt*+fΔe′Δetfπ′、fy′、fq-q*′fΔe′it*πt、yt、qt-qt*Δetf0fπ′=δα11-β4γ2θ+δα12-δθβ2+β4γ1+1fy′=β1+β2α1+β4γ1α1β2+β4γ1+δα11-β4γ2θ+δα12-δθβ2+β4γ1fq-q*′=β4β2+β4γ1fΔe′=δα11-β4γ21+α2θ+δα12-δθβ2+β4γ1+β3+α2β2+α2β4γ1β2+β4γ1f0=β0β2+β4γ1。1Ball2000Leitemoetal.2005。2fq-q*′δ、fπ′、fy′、fΔe′δ。3fq-q*′。fq-q*′β2、γ1、、Qβ4β2γ1β429··。、Qβ4。。4。fΔe′、IS、。β3fΔe′。5fπ′、fy′fΔe′β4fq-q*′β4。β4、Q。、Q、。、、。。GDPGDPπ。MM21。②qA。A1WIND。1994199527.7%19962009。CensusX12。。ADFPP。1ADFPP1%GDP、π、Mq。iPP1%ADF10%10%i。GrangerGDP、Granger32。③ADFPPPPGDP0.77340.77340.79440.9931DGDP-7.41160.0000*-7.41600.0000*π-2.41320.1433-2.89740.0522***Dπ-4.75230.0003*-5.35480.0000*M1.16760.99760.93020.9952DM-5.52490.0000*-5.50910.0000*i-2.83730.0599***-3.62610.0083*q-2.39020.1493-2.33500.1650Dq-5.00190.0001*-4.02850.0026*1ADFPP2Grangerχ2PDGDPiDGDPGranger2.70890.2581DπDGDPGranger1.91170.3845DMDGDPGranger5.27180.0717***DqDGDPGranger0.81100.6666ALLDGDPGranger19.42670.0127**DπDGDPDπGranger0.11510.9441iDπGranger17.56760.0002*DMDπGranger0.63140.7292DqDπGranger19.33790.0001*ALLDπGranger32.04070.0001*DqDGDPDqGranger0.19740.9060iDqGranger8.81270.0122**DMDqGranger0.25370.8809DπDqGranger0.97560.6140ALLDqGranger11.47030.1764iDGDPiGranger1.16980.5572DπiGranger0.69330.7070DqiGranger11.56430.0031*DMiGranger1.37890.5018ALLiGranger23.91250.0024*DMDGDPDMGranger4.09430.1291DπDMGranger5.29700.0708***iDMGranger0.83350.6592DqDMGranger0.13820.9332ALLDMGranger12.60630.1261*、*****1%、5%10%D。*、*****1%、5%10%。30··2GrangerGDP10%GrangerGDP5%GrangerGranger1%Granger1%Granger5%Granger5%Granger1%10%Granger。、、、GDPM2。VARDGDP、Dπ、DM、iDqVAR。VAR。VAR2。AR-RootsVARVAR。LM。316.43P0.25。LM10%。1.VAR。VAR。VAR。CholeskyCholeskyDGDP、Dπ、i、DMDq。1DqDGDP、Dπ、i、DM。GDP、、、1。1。GDP2336。。GDP。1~536。5。。。。2DGDP、Dq、iDMDπ。GDP、、、。1Dq2DGDP、Dπ、DMDq31··2。GDP1。GDP。2770。。2-0.04%0。10。。2.。。3。312。。Granger、VAR。。、Q。。GrangerGDPGranger。。。。。Zhang2009DSGE。、。。GDP。GDPHPGDPyt。。cpicn、cpius1996et。④πt、itqt。1996200955。AWIND。CensusX12。ADFyt、Δetit-Etπt+1qt。、State-Space。3Dq%DGDPDπiDM10.090.410.239.2921.151.399.497.1131.702.769.626.3443.123.1810.396.1353.403.2410.356.2063.433.2010.256.3173.393.2410.336.3183.413.2910.406.2993.453.3110.446.28103.473.3210.446.2832·· 。Etπt+1t+1Etyt+1t+1。1.β2β4。2yt+1t=0.111.9419+0.68yt2.0198+0.01Δet1.580-β2tit-Etπt+11.6290+β4tqt1.4074+ωt+1β2t=β2t-1+stβ4t=β4t-1+ξt2.γ1。43qt=bΔqt-1-γ1it-Etπt+1+γ2Etyt+1+μtqtt=0.23Δqt-11.9010-γ1tit-Etπt+12.914+0.08Etyt+11.8966+μtγ1t=γ1t-1+ξtfq-q*′=β4/β2+β4γ1γ1、β2β46。6119961998β4。β4⑤19961998、Qβ4fq-q*′β4fq-q*′β4。γ16。、IS、。。、Q。19962009。 3β2 4β45γ16fq-q*′33··1.、J.200610.2.J.20078.3.J.20044.4.J.20068.5.J.200710.6.J.200512.7.J.20061.8.J.20023.9.J.20063.10BallL.M.EfficientrulesformonetarypolicyJ.InternationalFinance19992:63-83.11FrenkelJ.andMussaM.AssetmarketsexchangeratesandthebalanceofpaymentsJ.InR.JonesandP.KenenedsHandbookofInternationalEconomicsVol.2.A