What is the amount of a product that consumers are willing and able to buy at a given price *?

What Is Quantity Demanded?

Quantity demanded is a term used in economics to describe the total amount of a good or service that consumers demand over a given interval of time. It depends on the price of a good or service in a marketplace, regardless of whether that market is in equilibrium.

The relationship between the quantity demanded and the price is known as the demand curve, or simply the demand. The degree to which the quantity demanded changes with respect to price is called the elasticity of demand.

Key Takeaways

  • In economics, quantity demanded refers to the total amount of a good or service that consumers demand over a given period of time.
  • Quantity demanded depends on the price of a good or service in a marketplace.
  • The price of a product and the quantity demand for that product have an inverse relationship, according to the law of demand.

Quantity Demanded

Understanding Quantity Demanded

Inverse Relationship of Price and Demand

The price of a good or service in a marketplace determines the quantity that consumers demand. Assuming that non-price factors are removed from the equation, a higher price results in a lower quantity demanded and a lower price results in higher quantity demanded. Thus, the price of a product and the quantity demanded for that product have an inverse relationship, as stated in the law of demand.

An inverse relationship means that higher prices result in lower quantity demand and lower prices result in higher quantity demand.

Change in Quantity Demanded

A change in quantity demanded refers to a change in the specific quantity of a product that buyers are willing and able to buy. This change in quantity demanded is caused by a change in the price.

Increase in Quantity Demanded

An increase in quantity demanded is caused by a decrease in the price of the product (and vice versa). A demand curve illustrates the quantity demanded and any price offered on the market. A change in quantity demanded is represented as a movement along a demand curve. The proportion that quantity demanded changes relative to a change in price is known as the elasticity of demand and is related to the slope of the demand curve.

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An Example of Quantity Demanded

Say, for example, at the price of $5 per hot dog, consumers buy two hot dogs per day; the quantity demanded is two. If vendors decide to increase the price of a hot dog to $6, then consumers only purchase one hot dog per day. On a graph, the quantity demanded moves leftward from two to one when the price rises from $5 to $6. If, however, the price of a hot dog decreases to $4, then customers want to consume three hot dogs: the quantity demanded moves rightward from two to three when the price falls from $5 to $4. 

By graphing these combinations of price and quantity demanded, we can construct a demand curve connecting the three points.

Using a standard demand curve, each combination of price and quantity demanded is depicted as a point on the downward sloping line, with the price of hot dogs on the y-axis and the quantity of hot dogs on the x-axis. This means that as price decreases, the quantity demanded increases. Any change or movement to quantity demanded is involved as a movement of the point along the demand curve and not a shift in the demand curve itself. As long as consumers' preferences and other factors don't change, the demand curve effectively remains static.

Price changes change the quantity demanded; changes in consumer preferences change the demand curve. If, for example, environmentally conscious consumers switch from gas cars to electric cars, the demand curve for traditional cars would inherently shift.

Price Elasticity of Demand

The proportion to which the quantity demanded changes with respect to price is called elasticity of demand. A good or service that is highly elastic means the quantity demanded varies widely at different price points.

Conversely, a good or service that is inelastic is one with a quantity demanded that remains relatively static at varying price points. An example of an inelastic good is insulin. Regardless of price point, those who need insulin demand it at the same amount.

Definition: Quantity demanded is the quantity of a commodity that people are willing to buy at a particular price at a particular point of time.

Description: Different quantities can be demanded at different prices at a particular point of time. When all the prices, along with quantity demanded, are drawn on a graph, the demand curve is formed. Quantity demanded can change at the same price depending upon factors like recession, changes in the taste of the consumer, etc.

What is the amount of a product that an individual is willing to purchase at a certain price within a given period?

Definition: Quantity demanded is the quantity of a commodity that people are willing to buy at a particular price at a particular point of time.

What is the quantity of a good that consumers are willing and able to purchase at various prices during a given period of time CO 3?

Individual demand refers to the quantity of the commodity that a consumer is able and willing to buy at each possible price during a given period of time.

What is quantity price?

The quantity supplied is the amount of a good or service that is made available for sale at a given price point. In a free market, higher prices tend to lead to a higher quantity supplied and vice versa. The quantity supplied differs from the total supply and is usually sensitive to price.

What is also known as demand price?

Price demand is the most important type of demand. It is also known as the conventional demand. Price demand specifies the change in quantity demand in terms of change in its own price.