The Law of
Supply and Demand
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Economics and Consumer
Demand
• Macroeconomics-studies the economic
behavior and relationships of an entire
society
• Microeconomics-examines relationship
between individual consumers and
producers
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Factors Affecting Demand
• How strong is the need or want?
• How available is the supply of products
and services to satisfy individual
needs?
• What alternative products could satisfy
consumer needs?
Copyright © Texas Education Agency, 2011. All rights reserved.
Law of Demand
• When the price of a product is
increased, less will be demanded
• Demand curve-shows the relationship
between price and the quantity
demanded
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Amount Supplied
• Profit motive
• Economic resources-natural resources,
capital, equipment, and labor
• Competition
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Law of Supply
• More will be supplied as prices
increase.
• Supply curve-graph of the relationship
between price and quantity supplied
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Market Price
• Point where supply and demand for a
product are equal
• Point where supply and demand
curves intersect
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Assignments
Independent Practice Activities
 Compare the price of a flight from Los Angeles to
New York on 3 different airlines as well as rate
their customer service.
 Develop a list of seasonal demand products for a
location that has changing seasons.
 Conduct a student survey in the school cafeteria to
determine the most highly demanded food items.
Copyright © Texas Education Agency, 2011. All rights reserved.