home :: North America :: USA :: Economy :: U.S. Economic System :: Markets and the Problem of Scarcity :: How a Single Market Works
Markets and the Problem of Scarcity, How a Single Market Works
price falls, vending machines, hamburgers, personal computer, market prices
Buyers hope to buy at low prices and will purchase more units of a product at lower prices than they do at higher prices. Sellers are just the opposite. They hope to sell at high prices, and typically they will be willing to produce and sell more units of a product at higher prices than at lower prices.
The price for a product is determined in the market if prices are allowed to rise and fall, and are not legally required to be above some minimum price floor or below some maximum price ceiling. When a product, for example, a personal computer, reaches the market, consumers learn what producers want to charge for it and producers learn what consumers are willing to pay. The interaction of producers and consumers quickly establishes what the market price for the computer will actually be. Some people who were considering buying a computer decide that the price is higher than they are willing to pay. And some producers may determine that consumers are not willing to pay a price high enough for them profitably to produce and sell this computer.
But all of the buyers who are willing and able to pay the market price get the computer, and all of the sellers willing and able to produce it for this price find buyers. If more consumers want to buy a computer at a specific market price than there are suppliers are willing to sell at that price—or in other words, if the quantity demanded is greater than the quantity supplied—the price for the computer increases. When producers try to sell more of their computers at a price higher than consumers are willing to buy, the quantity supplied exceeds the quantity demanded and the price falls.
The price stops rising or falling at the price where the amount consumers are willing and able to buy is just equal to the amount sellers are willing and able to produce and sell. This is called the market clearing price. Market clearing prices for many goods and services change frequently, for reasons that will be discussed below. But some market prices are stable for long periods of time, such as the prices of candy bars and sodas sold in vending machines, and the prices of pizzas and hamburgers. Most buyers of these products have come to know the general price they will have to pay for these items. Sellers know what prices they can charge, given what consumers will pay and considering the competition they face from other sellers of identical, or very similar, products.
Article key phrases: