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(1)AE = C+I+G = 150+0.8 yd+50+200 = 400+0.8(Y-0.25Y)= 400+0.6Y
根据均衡条件Y=AE，均衡收益Y=400/(1-0.6)=1000。
(2)kI = kG = 1/[1-B(1-t)]= 1/[1-0.8(1-0.25)]= 2.5 kT =-B/[1-B(1-t)]=-0.8/[1-0.8(65438
(3)δY = kgδG = 2.5×80 = 200
根据均衡条件Y=AE，均衡收益Y=400/(1-0.6)=1000。
(2)kI = kG = 1/[1-B(1-t)]= 1/[1-0.8(1-0.25)]= 2.5 kT =-B/[1-B(1-t)]=-0.8/[1-0.8(65438
(3)δY = kgδG = 2.5×80 = 200