The equation that spells out the quantities consumers are willing to buy at each price is called the demand curve. Demand and supply curves can be charted on a graph, with prices on the vertical axis ...

Once plotted, the demand curve slopes downward, from left to right. As prices increase, consumers demand less of a good or service. A supply curve, on the other hand, slopes upward. As prices ...

Supply and demand determine equilibrium prices; high demand or low supply raises prices. Investing during low demand and high supply periods can lead to cost savings. Supply-demand principles ...