Which price index tends to understate the impact of price changes on consumers?

If a nondiscriminating imperfectly competitive firm is selling its 100 th unit of output for $35, its marginal revenue:

A. may be either greater or less than $35. B. will also be $35. C. will be less than $35. D. will be greater than $35.

The additional production resulting from hiring one more worker is

A) marginal physical product. B) marginal cost. C) marginal production. D) additional production.