问题已解决
這個(gè)題怎么做?想要具體步驟,不要軟件搜出來(lái)的題答案
FAILED
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同學(xué),你好
X的邊際效用:MU=Y
Y的邊際效用:MU=X
邊際替代率:=Y/X
消費(fèi)者均衡條件得MUx/Px=MUy/Py,其中Px=2,Py=3,故為Y/2=X/3
根據(jù)收入公式:2X+3Y=120
得X=30,Y=20
2023 03/21 09:15
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2023 03/21 09:17
那第二問(wèn)和第三問(wèn)呢
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2023 03/21 09:21
2)?U=XY=30*20=600
???MU=-2/3
???U=600,貨幣的邊際效用λ=10
3)?設(shè)收入增加I,則
2.88X+3Y=120+I(因?yàn)樾в煤瘮?shù)U=XY=600,?約束條件M=XPX+YPY=2.88X+3Y)
XY=600
用1)的方法得到新預(yù)算線(xiàn)下效用最大時(shí)
X=(120+I)/5.76,?Y=(120+I)/6
則I^2+240I-6336=0解方程I=24
X=25 Y=24?
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