Answer:
A few firms producing either a differentiated or a homogeneous product.
Explanation:
Oligopoly is a type of market economy which is shared by few suppliers. There are two types of oligopoly markets, homogeneous and differentiated. This type of market is considered as highly concentrated. The three important characteristics of oligopoly market are; small number of firms, barriers to entry and identical and differentiated both goods are sold in this market.
