\fI. Which assumption rules out pure profit for a perfectly competitively firm in the long run? Question 1 options: large number of buyers and sellers one price free entry and exit of firms all of the above 10. The Delphi method Question 10 options: employs interaction among experts in the hope that resulting forecasts embody all available objective and subjective information can be influenced by the forceful personality of one or a few key experts employs an independent party to elicit a consensus opinion assumes that several experts arrive at forecasts that are inferior to those that individuals generate 20. For a firm in monopolistically competitive market equilibrium Question 20 options: MC > AC MR S AR MR = MC P 2 AC