This C tutorial explains how to use the #define preprocessor directive in the C language. In the C Programming Language, the #define directive allows the definition of macros within your source code. These macro definitions allow constant values to be declared for use throughout your code. Macro definitions are not variables and cannot be changed by your program code like variables.
Price Ceilings. If the price ceiling is above the market price, then there is no direct effect. If the price ceiling is set below the market price, then a shortage is created; the quantity demanded will exceed the quantity supplied. The shortage may be resolved in many ways.
Price ceiling. Price floor. Consumer surplus. Producer surplus. Price control or limit on how high a price is charged for a prâ¦. Price control or limit on how low a price can be charged for aâ¦. Total amount that consumers are willing to pay for good service. Measure and minimum amount the producer is willing to accept fâ¦. Price ceiling.