Demand Shifters


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As consumers, you and your friends buy goods and services every day. Producers of these goods and services are interested in consumer behavior because they want to produce products that will be popular with consumers, deliver the products to markets, and sell the products for a profit. To understand consumer behavior, you need to understand demand.


In this lesson you will learn about demand and factors that cause demand for a good or service to change. You will learn to recognize factors that influence your behavior as a consumer.


Part 1

Quantity demanded is the amount of a good or service people are willing and able to buy at a particular price, other things being equal.

Demand Schedule for Bubble Soda


Quantity Demanded
(in thousands)









Use the demand schedule for bubble soda above to answer multiple choice questions about quantity demanded.

soda can Remember the relationship between price and quantity demanded is inverse and is called the Law of Demand. Demand is the relationship between various prices and the quantities consumers are willing and able to buy during some time period, holding all other things constant. Demand is not a single price and quantity demanded from the schedule. Demand is the entire schedule.

The demand schedule can also be displayed as a graph. Use the demand graph for Bubble Soda to answer these questions.

buble graph1



  1. What does the demand curve look like?
  2. Why is the curve downward sloping?
  3. What is the one factor that resulted in consumer tastes for Bubble Soda to change?
  4. Why are consumers willing and able to buy more of a product at a lower price?

 Part 2

Part 3

What could cause a change in the quantity demanded at each and every price? The factors that cause this type of change are called non-price determinants.

Non price determinants include: 

Use the Bubble Soda example and determine how demand would change and why for each of the examples.


In this lesson you have reviewed the law of demand and how price changes affect the amount of a good or service consumers are willing and able to buy. You also learned about the non-price determinants of demand. Non-price determinants result in a change in demand. A change in demand means that the amount consumers are willing and able to buy changes at each and every price. Non-price determinants are sometimes called demand shifters. Test your knowledge by completing the attached true/false quiz.



newpaperLook for advertisements and newspaper articles related to demand shifters. For each example you find, identify the demand shifter and the resulting change in demand.

Write headlines illustrating each of the demand shifters and write a short news story for each headline.