Answer:
Difficult entry
Mutual interdependence
Either homogeneous or differentiated products
Step-by-step explanation:
A monopolistic market structure refers to the market where there is a small number of firms, mutual interdependence, a high degree of competition, and some level of difficulty in entering the market.
Since there are only a few firms in the market, the economic decisions of a firm affect its rivals. So the firms are mutually interdependent on each other and a firm has to consider the reaction of its rivals before making a decision.
The firms can either produce homogenous products or differentiated products. The high degree of competition makes it a little difficult for new firms to enter the market.