3: Demand and Supply Last updated Save as PDF Page ID4063 Contributed by OpenStaxSocial Sciences at OpenStax CNXPublished by OpenStax 3.0: Prelude to Demand and Supply3.1: Demand, Supply, and Equilibrium in Markets for Goods and Services3.2: Shifts in Demand and Supply for Goods and Services3.3: Changes in Equilibrium Price and Quantity: The Four-Step Process3.4: Price Ceilings and Price Floors3.5: Demand, Supply, and Efficiency3.E: Demand and Supply (Exercises) Thumbnail: Illustrates the intersection of supply and demand curves as the free market equilibrium. (CC BY-SA 3.0 Unported; SilverStar via Wikipedia)