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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我同学问的...大家帮忙一下吧~~

1.四个人的加总就是了 (1/2是对分子还是整个式子 ?)2.代入给的条件算出来加总 我算是11.5