Y
=100+0.75(Y-60)+50+70
=100+0.75Y-45+50+70
0.25Y=175
Y=700<800→緊縮
缺口=(700-800)/(1/1-0.75)=25
當Y=C+I+G,C=100+0.75Yd,I=50,G=70,T=60,Yd=..-阿摩線上測驗