Much of U.S. industry is best classified as oligopolistic in structure with a wide range of industry configurations. At one extreme are dominant single firms in the markets for razors, beer, etc., in crackers, handsets, etc. two firms dominate, Sales in tires, U.S. auto & truck markets are dispersed across 6-8 firms. Market shares are more dispersed in telecom equipment and pharmaceuticals.

Please choose one industry and explain why it is an oligopoly, identify who the top competitors are, and if possible - locate their market share