Two firms Apple and Samsung in the smart phone market have combined demand given by Q = 200 – P. Their total costs are given by TC Apple = 4 Q Apple + Q 2Apple and TC Samsung = 4 Q Samsung + Q 2Samsung . If they cannot successfully collude and instead produce where the market price equals marginal cost, their total output will be:
Given, Q = 200 - P so P = 200 - Q
where, Q = QA + QS (A- Apple and S - Samsung)
P = 200 - QA - QS
and TCA = 4QA+ QA2
TCS= 4QS+ QS2
If they cannot successfully collude and instead produce where the market price equals marginal cost, then for Apple
P = MCA
MCA = dTCA/dQA = 4 + 2QA
So,
200 - QA - QS = 4 + 2QA
3QA + QS = 196....(i)
And for Samsung,
P = MCS
MCS = dTCS/dQS = 4 + 2QS
So,
200 - QA - QS = 4 + 2QS
QA + 3QS = 196....(ii)
Solving equations (i) and (ii) simultaneously, we get
QA = 49 units and QS = 49 units
Thus, the total output is
Q = QA + QS = 49 + 49 = 98 units
Therefore, If they cannot successfully collude and instead produce where the market price equals marginal cost, their total output will be 98 units.
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