The physiocrats were a group of economists who believed that the wealth of nations was derived solely from the value of land agriculture or land development. Their theories originated in France and were most popular during the second half of the 18th century. Physiocracy's perhaps the first well developed theory of economics. The movement was particularly dominated by Anne-Robert-Jacques Turgot (1727–1781) and François Quesnay (1694–1774). It immediately preceded the first moder… (More on Physiocrats)