Introduction to Supply and Demand

As I previously stated, "Everything you consume is influenced by supply and demand and impact prices of consumer goods and services within an economy." This relationship between supply and demand will balance out into an equilibrium with prices; when this equilibrium is reached, a perfect allocation of resources of production will occur. At this point, prices are perfectly set to the interest consumers and companies, and production will occur where they will produce neither too much nor too little product. Businesses use this as the mechanism determining product development and production.

Consumers, then, dictate which products are produced and sold by creating the demand for companies to supply with goods and services. Companies study consumer behavior in an attempt to understand current and future demand. The capacity to produce enough supply to meet demand keeps prices low enough to entice consumers. In this sense, both supply and demand are equally important to economic vitality, and very important to learn. Below is a picture of a supply curve and demand curve with the equilibrium point being where the two curves cross.


Image of Supply and Demand

Demand

Law of Demand states that quantity demanded varies inversely with price. As demand increases, available supply decreases and an increased supply may satiate available demand at that price. The Law of Demand states as the price of a good or service that consumers are willing and able to buy during a certain time period rises (or falls), the quantity of that good or service demanded falls (or rises). If supply decreases, prices may continue to increase if there is a strong demand for that item.

Supply

Law of supply states that quantity supplied (offered for sale) varies directly with price. Supply is the amount of a particular good or service available at a given time to consumers. The Law of Supply states that as the price of a good or service that producers are willing and able to offer for sale during a certain time period rises (or falls), the quantity of that good or service supplied rises (or falls). Supply and demand have an important relationship that determines the prices of most goods and services.

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