13. Which statement is true? (LO2) a) Most of American industry is engaged in cutthroat competition. b) Most of American industry does not compete. c) Some oligopolistic industries are more competitive than others. d) None of the above. 14. An industry that is highly concentrated might have a Herfindahl-Hirschman index of (LO1) a) 20,000 d) 100 b) 2,000 e) 1 c) 800