MC curve must be rising
MC curve must be falling
MR cure must be rising
None of the above
✅ The correct answer is A.
At the point of equilibrium of firm (under perfect competition) MC curve must be rising. If the firm is producing at an output level where the MC is falling, then this implies that it can further increase the profit by slightly raising the level of output. Equilibrium is established at the point where the MR is equal to MC and MC is rising.
At the point of equilibrium of firm (under perfect competition) MC curve must be rising. If the firm is producing at an output level where the MC is falling, then this implies that it can further increase the profit by slightly raising the level of output. Equilibrium is established at the point where the MR is equal to MC and MC is rising.