Chapter 16 is about monopolistic competitive markets. Oligopolies and monopolistic competitive are both tied to monopolies and competitive markets. Monopolistic competitive markets has numerous sellers and free entries and exits but the products still has certain distinctions that differentiate them.  n this part we see that the best approach to discover benefit boost for monopolistic contenders is the same as syndications in the short run and there are benefits and misfortunes. Nonetheless, similar to a focused market, over the long haul a monopolistic competitive market achieves zero economic profit, which is the point where normal aggregate cost squares with cost. The harmony in a monopolistically aggressive market is unique in relation to the balance in a splendidly focused on the grounds that every firm in a monopolistic focused market has abundance limit and every firm charges a cost above peripheral cost. Monopolistic rivalry likewise has the deadweight misfortune that imposing business models have because of the markup of cost over peripheral cost. Because of the item separation in monopolistic competitive markets, there is promoting and brand names.