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.
Answered by The Community. Making the world better, one answer at a time. 1st way of government policy to affect demand/supply is through price ceilings and price floors. By price ceiling it means that goods have to be sold below this price and price floors means that goods have to be sold above this price set.As supply decreases, price increases, because there is less of the commodity available on the market, and consumers must compete more aggressively with each other to purchase the same commodity. Price can also increase when demand increases, also creating increased competition for the commodity.