1 jan 1767 ano - Say’s Law states that supply creates its own demand. Having something to sell leads to the ability to buy. So the source of demand is production and not money. In other words, a person's ability to demand goods or services from other is predicated from the income produced by that person's own acts of production. It supports the view that governments should not interfere with the free market and should adopt a laissez-faire approach. Say was heavily influenced and strongly supported Smith’s free (Linha do tempo)