A4. According to the government, what is the classification of the brewery industry in terms of concentration? Explain your answer.

Market shares in the U.S. brewery (beer-manufacturing) industry are as follows. Brewery Anheuser-Busch Miller-Coors Constellation Heineken Pabst 2000 small companies Total Market Share (Percent) 40 23 11 4 2 each about 0.01 100