Supply and Demand:The relationship between the quantity of a good or service that producers are willing to sell at various prices and the quantity that consumers are willing to buy. The interaction of supply and demand determines market prices and the allocation of resources.
Market Equilibrium:The point at which the quantity supplied and the quantity demanded of a good or service are equal, resulting in a stable market price.
Invisible Hand:The concept that individuals pursuing their own self-interest in a free market will ultimately benefit society, even if that was not their intent, through the price system's efficient allocation of resources.