In: Economics
Consider the following utility function U(x,y)=x^r+
y^r,0<r<1
Find the income effect and substitution effect?
Does the substitution effect increase or decrease when
r increases?
Solution:
Given

a)
Let find the substitution effect first
Substitution effect = change in quantity of x with change in quantity of Y.


Now,



Now applying y/x constant lets assume r increases
then

The substitution effect decreases with increase in
r.
b)
Now considering income effect


Now,



Similarly,
