[tex]\bold{MR = P}[/tex] is equivalent to both of the given conditions in a fully competitive market.
Explanation:
In profit maximization, [tex]MR = MC[/tex] corresponds to [tex]P = MC[/tex] since, for a fully competitive product, the marginal revenue curve is the same as its demand. If a company produces during this level, marginal income is lower than marginal cost.
This ensures that for each additional production unit, the company loses profit and should deliver less. [tex]MR > MC[/tex] the company produces less and may increase income by higher output.
To sum up, [tex]MR > MC[/tex] the company produces less and can make profit by increasing production [tex]MR < MC[/tex] the company produces more and can earn a profit by reducing the output.