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Elasticity
       
Market Demand
   Dr. Stephen Kinsella
   EC4004 Lecture 4
Demand Functions
                                Market Demand
Income  Substitution Effects
                                Elasticity
Consumer Surplus
Market demand: The total
quantity of a good or service
   demanded by all potential
                      buyers.
1.
Market demand: The total
quantity of a good or service
demanded by all potential buyers.

Market demand curve shows
the relationship between the total
quantity demanded of a single good
or service and its price, holding all
other factors constant.
PX




P*
 X



     0       X*
              1


         (a) Individual 1
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4
Ec4004 2008 Lecture 4

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Ec4004 2008 Lecture 4

  • 1. Elasticity Market Demand Dr. Stephen Kinsella EC4004 Lecture 4
  • 2. Demand Functions Market Demand Income Substitution Effects Elasticity Consumer Surplus
  • 3. Market demand: The total quantity of a good or service demanded by all potential buyers.
  • 4. 1.
  • 5. Market demand: The total quantity of a good or service demanded by all potential buyers. Market demand curve shows the relationship between the total quantity demanded of a single good or service and its price, holding all other factors constant.
  • 6. PX P* X 0 X* 1 (a) Individual 1