Demand and Supply – Basic Concepts
This section explores the foundational elements of demand and supply in economics. Demand indicates both a desire and an ability to purchase goods, emphasizing effective demand as critical for economic analysis. Factors such as the price of the commodity, consumer income levels, preferences, and advertising influence demand. The Law of Demand states that as prices decrease, the quantity demanded increases — reflecting an inverse relationship.
Conversely, supply refers to the amount of a good that producers are willing to sell at varying price points. It is influenced primarily by the price of the commodity, production costs, technology, government policies, and natural conditions. The Law of Supply posits a direct relationship: as prices rise, so does the quantity supplied.
This section also introduces the concepts of demand and supply schedules, which illustrate quantities at different price levels, and curves that graphically represent these relationships. Finally, it explains market equilibrium, where the quantity demanded aligns with the quantity supplied.