簡單凱因斯 平衡預算乘數 - 經濟

C=80+0.6Yd
Yd=Y-T
T=0.5Y+20
I=150
G=212
X=100
M=50+0.1Y

(1)平衡預算乘數=?

(A)1.0(B)0.8(C)0.625(D)0.5

Ans:B

(2)Suppose that the government encourage consumption and issues
consumption coupons of total value 10,000. How much does this
policy increase equilibrium output?

(A)10,000(B)12,500(C)25,000(D)375,00

Ans:B

這種題目要怎麼思考阿
第一題我都算成0.5.......

跪求思考方向Q_Q




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