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 .