Hubert Hall, Dictionary of National Biography… (1912)
“ Giffen, a prolific writer on economic, financial, and statistical subjects, possessed a luminous and penetrating mind, great stores of information, an intimate acquaintance with business matters and methods, and shrewd judgment. His instructive handling of statistics and his keen eye for pitfalls contributed greatly to raise the reputation and encourage the study of statistics in this country, though he did not develop its technique by the higher mathematical treatment. A sturdy individualist, Giffen viewed with suspicion any infraction of the maxim laissez-faire. ”
