The second-order condition for a monopoly maximizing its profit is:
A. (dMR/dQ) < (dMC/dQ).
B. (d2R(Q)/dQ2) ? (d2C(Q)/dQ2) < 0.
C. (d2R(Q)/dQ2) ? (d2C(Q)/dQ2) < 0 or (dMR/dQ) < (dMC/dQ).
D. (d2R(Q)/dQ2) ? (d2C(Q)/dQ2) = 0.
Answer: C
Economics
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