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.
1 Price ceilings often lead to inefficiency in the form of inefficient allocation to consumers: people who really want the good and are willing to pay a high price donât get it, and those who are not so interested in the good and are only willing to pay a low price do get it. Price floors may benefit some influential sellers. 2  Governments donât understand the supply and demand model, or they think that it doesnât describe reality well. 3  Price controls are legal restrictions on how high or low a market price may} DUPipeline_QISnippet_FirstGood_Snippet_v1: {},{-1|-1|1|Price Control.