Behavioralists Believe That

Behavioralists believe that

A) if four or fewer firms control more than half of the market for a product, then the Sherman Act is being violated.
B) industries should be judged on the basis of their price-output behavior and their technological progressiveness.
C) there is no evidence that any monopolistic industry has abused its market power.
D) all concentrations of economic power are socially undesirable.