What constitutes a need? Who gets to decide what people do or do not need? In modern France, scientists, both amateur and professional, were engaged in defining and measuring human needs. These scientists did not trust in a providential economy to distribute the fruits of labor and uphold the social order. Rather, they believed that social organization should be actively directed according to scientific principles. They grounded their study of human needs on quantifiable foundations: agricultural and physiological experiments, demographic studies, and statistics.

The result was the...