In: Economics
1. Suppose the consumer has Cobb-Douglas preferences U(x1, x2)=X1aX2b Find out Ordinary Demands
2. Suppose the consumer has a perfect complement preferences U(X1,X2)=min{aX1, X2} Find out Ordinary Demands
Answer 1.
Let
be price of good
,
price be of good
and
represent the consumer's income. Therefore,
represents consumer's budget constraint. "For maximizing utility,
marginal rate of substitution must be equivalent to price ratio.
"
" Marginal rate of substitution is calculated using:
"
Numerator of
is given by
.
and denominator of
is given by
.
Equating
to price ratio , imply:
This can be written as :
Put
in
----------
Put
in
---------------------------
So, ordinary demand of
is
and of
is
.
Answer 2.
Let
be price of good
,
price be of good
and
represent the consumer's income. Therefore,
represents consumer's budget constraint.
In this case optimal demand occurs at a point where
putting
in
imply
Putting
in
to get
So, ordinary demand of
is
and of
is
.