At the maximum point of the total product curve of a firm; marginal revenue is? by Sunday | Oct 28 | Economics JAMB | 0 comments A. decreasing B. increasing C. constant D. zero Correct Answer: Option D – zero Users Also Read These:In the theory of production and cost, the average…What effect will an increase in price have on the…A firm with marginal cost equals to its marginal…The relationship between the marginal revenue (MR)…The diagram shows the total utility curve. At the…