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In page Étienne Bonnot de Condillac:

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Condillac's Le Commerce et le Gouvernement (published in 1776, the same year as Adam Smith's Wealth of Nations) attempted to place economics in a coherent logical framework. He was a friend of François Quesnay – leader of the Physiocrats. Much of Condillac's work reflected mainstream Physiocrats, particularly his analysis of the structure of taxation and proposals for the revival of the economy, but he also proposed another line of argument, claiming that producers work to obtain utility. Most physiocrats rejected utility and the idea was ignored until his 'rediscovery' by Stanley Jevons and Carl Menger in 1871.[citation needed]