In: Economics
a) Demand in a competitive market is given by, P=110-.0001Qd. Supply is given by P=10+.0001Qs. What is Marginal Revenue in this market?
b) Demand in a competitive market is given by, P=110-.0001Qd. Supply is given by P=10+.0001Qs. What is the market quantity?
a) TR = P*Q
= 110Q - .0001*Q^2
MR = dTR/dQ
= 110 - .0002Q
As at eqm, Q = 500,000
So, MR = 110-.0002*500,000
= 110- 100
= 10
.
B) at market eqm :
Demand = supply
110-.0001Q = 10+.0001Q
100= .0002Q
Q*= 100/.0002
= 500,000