一題期中題目不知道怎麼解 - 經濟
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By Xanthe
at 2010-01-04T13:44
at 2010-01-04T13:44
Table of Contents
※ 引述《k90209 (k90209)》之銘言:
: Mike consumes two commodities, x and y, and his utility function is
: min(x+2y,y+2x) . He chooses to buy 8 units of good x and 16 units of good y.
: The price of good y is 0.5.
: Derive price of good x and Mike’s income
: 圖形我會畫,消費者達到效益最高的消費應該要x=y吧,為什麼他會消費8個x,16個y呢
: x的價格又要怎麼獲得呢?
消費者達到的最高效益不一定發生在X=Y上 (拗折型效用函數的解有五種型態)
是"拗折點"發生在X=Y上 (因為X+2Y=Y+2X,得出X=Y)
文中說出消費量(X,Y)=(8,16)
表示滿足最大效用的條件發生在Y>X
也就是拗折點左邊
當滿足上面這個條件,使用MRSxy = Px/Py去解
所以 2 = Px/0.5
故Px = 1
那income就是Px*X+Py*y = 1*8 + 0.5*16 = 16 #
--
: Mike consumes two commodities, x and y, and his utility function is
: min(x+2y,y+2x) . He chooses to buy 8 units of good x and 16 units of good y.
: The price of good y is 0.5.
: Derive price of good x and Mike’s income
: 圖形我會畫,消費者達到效益最高的消費應該要x=y吧,為什麼他會消費8個x,16個y呢
: x的價格又要怎麼獲得呢?
消費者達到的最高效益不一定發生在X=Y上 (拗折型效用函數的解有五種型態)
是"拗折點"發生在X=Y上 (因為X+2Y=Y+2X,得出X=Y)
文中說出消費量(X,Y)=(8,16)
表示滿足最大效用的條件發生在Y>X
也就是拗折點左邊
當滿足上面這個條件,使用MRSxy = Px/Py去解
所以 2 = Px/0.5
故Px = 1
那income就是Px*X+Py*y = 1*8 + 0.5*16 = 16 #
--
Tags:
經濟
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By Ina
at 2010-01-07T15:48
at 2010-01-07T15:48
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