宏观经济学
答案:
(1)L=L1(Y)+L2(r)
当Y=700时, L1(Y)=140; 当r=8% 时, L2(r)=70 ∴L=L1(Y)+L2(r)=140+70=210
当r=10% 时,L2(r)=50∴ L=L1(Y)+L2(r)=140+50=190 (2)当Y=600时,L(Y)=120 L=L1(600)+L2(12%)=120+30=150 L=L1(600)+L2(10%)=120+50=170 L=L1(600)+L2(8%)=120+70=190 L=L1(600)+L2(6%)=120+90=210 L=L1(600)+L2(4%)=120+110=230 当Y=700时L1(r)=140
L=L1(700)+L2(12%)=140+30=170 L=L1(700)+L2(10%)=140+50=190 L=L1(700)+L2(8%)=140+70=210 L=L1(700)+L2(6%)=140+90=230 L=L1(700)+L2(4%)=140+110=250 当Y=800时L1(800)=160
L=L1(800)+L2(12%)=160+30=190 L=L1(800)+L2(10%)=160+50=210 L=L1(800)+L2(8%)=160+70=230 L=L1(800)+L2(6%)=160+90=250 L=L1(800)+L2(4%)=160+110=270 (3)图形