CONDILLAC, Etienne Bonnot De was born in 1714 in Grenoble, France.
Philosopher, educationalist and economist. His philosophical work was based on Locke and Newton, preferring reliance on observation and experience to Descartes’ emphasis on fixed principles. His educational work arose from his tutorship of the young Duke of Parma for whom he prepared a systematic course of study.
His economic writings were neglected in his own time. He stressed the economic interdependence of all occupations and classes, the role of national and international markets, and the significance of competition and the price system when not impaired by monopoly and other restrictions on trade. All this was expressed in the simplest terms he could achieve.
He was rediscovered by the late nineteenth-century utility theorists as a forerunner. Private income; Tutor, Duke of Parma, 1758-1767.