消费函数:c=a+bY,由于a=300,b=0.8,y为总收入,Y为可支配收入, Y=y-t=y-0.25y,即c=a+bY=300+0.8(y-0.25y)=300+0.6y. 均衡产出:y=c+i+g+x-m=300+0.6y+250+360+280-240=0.6y+870,解得y=2175.即均衡产出是2175.