Which of the following statements is true?
a. A vertical merger is a merger of firms that compete
in the same market.
b. The rule of reason doctrine declares that the existence
of monopoly alone is illegal.
c. Government regulation of a natural monopoly is
economically justifiable.
d. Deficient information on unsafe products causes
underconsumption.
e. Federal Trade Commission Act of 1914
f. Robinson-Patman Act of 1936
g. Celler-Kefauver Act of 1950