Types of Imperfectly Competitive Markets Olig topol Only a few sellers, each offering a similar or identical product to the others Monopolistic Competition Many firms selling products that are similar but not identical H arc Inc items and derived items copyright o 2001 by Harcourt, IncHarcourt, Inc. items and derived items copyright © 2001 by Harcourt, Inc. Types of Imperfectly Competitive Markets uOligopoly uOnly a few sellers, each offering a similar or identical product to the others. uMonopolistic Competition uMany firms selling products that are similar but not identical