Affirmative action laws require employers to search for qualified minority applicants, but not to necessarily give them jobs

The competition faced by firms in an oligopoly with differentiated products is higher than that faced by firm(s) in ________

A) a duopoly with homogeneous products B) perfect competition C) monopolistic competition D) monopoly

Each of the following factors might interfere with the efficiency of perfect competition except:

a. increasing returns to scale. b. imperfect price information. c. externalities. d. diminishing returns to scale.