Supply and Demand:The relationship between the quantity of a good or service that producers are willing to sell (supply) and the quantity that consumers are willing to buy (demand) at different prices, which determines the market price.
Price Mechanism:The process by which the price of a good or service is determined by the interaction of supply and demand in a market, acting as a signal to guide the efficient allocation of resources.
Invisible Hand:The concept introduced by Adam Smith, where the self-interested actions of individuals in a free market, without central coordination, lead to the best outcome for society as a whole.