The document discusses governmental imposition of price controls through price ceilings and price floors and their effects on market equilibrium. [1] A price ceiling sets a maximum price that can be charged for a good and often results in a shortage if set below equilibrium price. [2] A price floor sets a minimum price and often leads to a surplus if set above equilibrium price. [3] Both price ceilings and floors can introduce inefficiencies in the market allocation of goods and resources.