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:The average curve and the marginal curve are…The relationship between the marginal revenue (MR)…What effect will an increase in price have on the…The diagram shows the total utility curve. At the…In the theory of production and cost, the average…