Imagine a market for x composed of four individuals: Mr. Pauper(P), Ms.
Broke(B), Mr. Average(A), and Ms. Rich(R). All four have the same demand
function for x: It is a function of income(I), P' and the price of an
important
x
substitute(Y), for x:
1/2
(IPy)
X= _____
2Px
1.
What is the market demand function for x ?
2.
If Px =Py =1, Ip =IB =16,
IA =25, and
IR
100, what is the total market
demand for x ?
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我同學問的...大家幫忙一下吧~~

1.四個人的加總就是了 (1/2是對分子還是整個式子 ?)2.代入給的條件算出來加總 我算是11.5