Answer:
price-elasticity = 0
Explanation:
The formula for mid-point elasticity will be as follows:
[tex]\frac{q_1-q_2}{\frac{q_1+q_2}{2}} \div\frac{p_1-p_2}{\frac{p_1+p_2}{2}}[/tex]
Now, as quantity did not change we get:
q1 = q2
thus q1 + q2 = 2q1
and q1 - q2 = 0
[tex]\frac{0}{\frac{2q_1}{2}} \div\frac{1.15-0.90}{\frac{1.15+0.90}{2}}[/tex]
As we are getting a zero the end result will be zero which makes complete sense as there was no change in quantity the demand is completely inelastic.
