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Parameter Name DICE2007 (10 years) DICE-CJL (1 year) T 1*60 1*600 GPOP0 .35 .035 GA0 .092 .0092 GSIGMA -.0730 -.00730 ELAND0 11.000 1.1000 b11 0.810712 0.9810712 b12 0.189288 0.0189288 b21 0.097213 0.0097213 b22 0.852787 0.9852787 b23 0.05 0.005 b32 0.003119 0.0003119 b33 0.996881 0.9996881 C1 .220 .0220 C4 .050 .0050 GBACK .05 .005 ga(T) =ga0*EXP(-dela*10 *(ORD(T)-1)); =ga0*EXP(-dela*(ORD(T)-1)); gsig(T) =gsigma*EXP(-dsig*10 *(ORD(T)-1)-dsig2*10 *((ord(t)-1)**2)); =gsigma*EXP(-dsig*(ORD(T)-1)-dsig2*((ord(t)-1)**2)); ETREE(T) = ELAND0*(1-0.1 )**(ord(T)-1); = ELAND0*(1– 0.01 )**(ord(T)-1); RR(t) =1/((1+prstp)**(10 *(ord(T)-1))); =1/((1+prstp)**((ord(T)-1))); FORCOTH(T) = FEX0+ .1 *(FEX1-FEX0)*(ORD(T)-1)$(ORD(T) LT 12)+ 0.36$(ORD(T) GE 12) ; = FEX0+ 0.01 *(FEX1-FEX0)*(ORD(T)-1)$(ORD(T) <= 101)+ 0.36$(ORD(T) > 101) ; PARTFRACT(T) PARTFRACT(T)$(ord(T)<25 ) = Partfract21 + (PARTFRACT2-Partfract21)*exp(-DPARTFRACT*(ORD(T)-2)); PARTFRACT(T)$(ord(T)<250 ) = Partfract21 + (PARTFRACT2-Partfract21)*exp(-DPARTFRACT*(ORD(T)-2));
Equation Name DICE2007 (10 years) DICE-CJL (1-year) KK(T).. K(T+1) =L= (1-DK)**10 *K(T)+10 *I(T); K(T+1) =L= (1-DK) *K(T)+I(T); RIEQ(T).. RI(T) =E= GAMA*Y(T)/K(T)- (1-(1-DK)**10)/10 ; RI(T) =E= GAMA*Y(T)/K(T)- DK ; UTIL.. UTILITY =E= SUM(T, 10 *RR(T)*L(T)*(PERIODU(T))/scale1)+ scale2 ; UTILITY =E= SUM(T, RR(T)*L(T)*(PERIODU(T))/scale1)+ scale2 ; MMATAVEQ(t).. MATAV(T) =e= (MAT(T)+MAT(T+1))/2 ; MATAV(T) =e= MAT(T) ; TATMEQ(T+1).. TATM(T+1) =E= TATM(t)+C1*(FORC(t+1) -LAM*TATM(t)-C3*(TATM(t)-TOCEAN(t))); TATM(T+1) =E= TATM(t)+C1*(FORC(t) -LAM*TATM(t)-C3*(TATM(t)-TOCEAN(t)));
Gams Code