The document discusses price ceilings, price floors, and taxes through examples and analysis. A price ceiling of $2.00 per ice cream cone is shown to create a shortage of 50 cones as demand at that price is 125 cones but supply is only 75 cones. Price floors similarly create surpluses by requiring prices above the market equilibrium. Taxes can be levied on buyers or sellers, with tax incidence depending on the elasticities of supply and demand.