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Demand And Consumer Behavior Chapter 5
Topics: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Numerical Example  0 10 5 1 10 4 2 9 3 3 7 2 4 4 1   0 0 Mu  T U Consumed Q
10 5 10 4 9 3 7 2 4 1 0 0 T U Consumed Q
Marginal utility  0 1 2 3 4   Mu
Equi marginal Principal : Equal Marginal Utilities per dollar for every good: ,[object Object],[object Object]
From Individual to market demand curve Quantity 1 Quantity 2 Quantity  Price Price D1 D2 Q=Q1+Q2 Market demand curve Price 1 2 3 5 5 5
Consumer welfare or Surplus ,[object Object],[object Object],Quantity prices 1 2 3 4 1 2 3 4 P=2
[object Object],Quantity prices Expenses Consumer Surplus Marginal Willingness to pay for last unit
Conti…. ,[object Object],[object Object],[object Object]
Budget Line Pf = Rs40 Pc =Rs30 Slope = Pf/ Pc 6 0 4.5 1 3 2 1.5 3 0 4 Clothing Food
Budget line Equation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Change in Budget Line  (Change in income) Clothing  Food B2 B Y / Pf Y / Pc Y2 / Pc Y2 / Pf
Change in Budget Line  (Change in Price) Clothing  B2 B Y / Pf Y / Pf2 Y / Pc Price decrease
Conti…. ,[object Object],[object Object],[object Object]
Table  60 55 49 42 35 24 6 55 50 45 39 32 22 5 49 45 40 35 28 20 4 42 39 35 30 24 17 3 35 32 28 24 20 14 2 24 22 20 17 14 10 1 Food 1  2  3  4  5  6 Clothing 1 6 2 3 3 2 6 1 Food Cloth Satisfaction level 24   
Indifference Curve 1 1 6 2 3 3 2 6 1 Food Cloth Satisfaction level 24   
Indifference Curve 2 60 55 49 42 35 24 6 55 50 45 39 32 22 5 49 45 40 35 28 20 4 42 39 35 30 24 17 3 35 32 28 24 20 14 2 24 22 20 17 14 10 1 Food 1  2  3  4  5  6 Clothing 2 6 4 3 6 2 Food Cloth   Satisfaction level 35
 
Indifference Map
Indifference Curve Properties  ,[object Object],[object Object],[object Object]
Marginal rate of substitution (slope) MRS =  Δ C/  Δ F = 3/1
Perfect  substitute & Perfect complement   Orange Juice  Apple Juice  Right Shoe Left Shoe  Food Clothing  Q =1 a. Perfect substitute b. Perfect complement  Typical IC lie between the extreme cases of straight lines and right angle.  Along a curved IC, the ability to substitute one input for another varies.

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Demand and consumer behavior

  • 1. Demand And Consumer Behavior Chapter 5
  • 2.
  • 3. Numerical Example 0 10 5 1 10 4 2 9 3 3 7 2 4 4 1   0 0 Mu T U Consumed Q
  • 4. 10 5 10 4 9 3 7 2 4 1 0 0 T U Consumed Q
  • 5. Marginal utility 0 1 2 3 4   Mu
  • 6.
  • 7. From Individual to market demand curve Quantity 1 Quantity 2 Quantity Price Price D1 D2 Q=Q1+Q2 Market demand curve Price 1 2 3 5 5 5
  • 8.
  • 9.
  • 10.
  • 11. Budget Line Pf = Rs40 Pc =Rs30 Slope = Pf/ Pc 6 0 4.5 1 3 2 1.5 3 0 4 Clothing Food
  • 12.
  • 13. Change in Budget Line (Change in income) Clothing Food B2 B Y / Pf Y / Pc Y2 / Pc Y2 / Pf
  • 14. Change in Budget Line (Change in Price) Clothing B2 B Y / Pf Y / Pf2 Y / Pc Price decrease
  • 15.
  • 16. Table 60 55 49 42 35 24 6 55 50 45 39 32 22 5 49 45 40 35 28 20 4 42 39 35 30 24 17 3 35 32 28 24 20 14 2 24 22 20 17 14 10 1 Food 1 2 3 4 5 6 Clothing 1 6 2 3 3 2 6 1 Food Cloth Satisfaction level 24  
  • 17. Indifference Curve 1 1 6 2 3 3 2 6 1 Food Cloth Satisfaction level 24  
  • 18. Indifference Curve 2 60 55 49 42 35 24 6 55 50 45 39 32 22 5 49 45 40 35 28 20 4 42 39 35 30 24 17 3 35 32 28 24 20 14 2 24 22 20 17 14 10 1 Food 1 2 3 4 5 6 Clothing 2 6 4 3 6 2 Food Cloth   Satisfaction level 35
  • 19.  
  • 21.
  • 22. Marginal rate of substitution (slope) MRS = Δ C/ Δ F = 3/1
  • 23. Perfect substitute & Perfect complement Orange Juice Apple Juice Right Shoe Left Shoe Food Clothing Q =1 a. Perfect substitute b. Perfect complement Typical IC lie between the extreme cases of straight lines and right angle. Along a curved IC, the ability to substitute one input for another varies.