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SS2: ECONOMICS - 1ST TERM

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  1. Basic Tools for Economic Analysis I | Week 1
    5 Topics
  2. Basic Tools for Economic Analysis II | Week 2
    3 Topics
    |
    1 Quiz
  3. Theory of Demand | Week 3
    4 Topics
    |
    1 Quiz
  4. Theory of Supply | Week 4
    4 Topics
    |
    1 Quiz
  5. Theory of Production Possibility Curve I | Week 5
    1 Topic
  6. Theory of Production Possibility Curve II | Week 6
    4 Topics
    |
    1 Quiz
  7. Theory of Cost I | Week 7
    2 Topics
  8. Theory of Cost II | Week 8
    3 Topics
    |
    1 Quiz
  9. Revenue Concept | Week 9
    2 Topics
    |
    1 Quiz



Lesson 4, Topic 4
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Change in Quantity Supplied & Change in Supply

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Topic Content:

  • Change in Quantity Supplied
  • Shift or Change in Supply
    • Increase in Supply
    • Decrease in Supply

Change in Quantity Supplied:

A change in quantity supplied means a movement, from one particular point on the supply curve to another point, on the same supply curve.

Such a change in quantity is a reaction to a change in price alone e.g. the movement from P to P1. A change in quantity supplied is a movement along the same supply curve caused by a change in the price of the commodity.

In simple words, movement along a supply curve represents the variation in quantity supplied of the commodity with a change in its price and other factors remaining unchanged.

The movement in the supply curve can be of two types – extension and contraction. Extension in a supply curve is caused when there is an increase in the price or quantity supplied of the commodity while contraction is due to a decrease in the price or quantity supplied of the commodity.

increase in supply

 

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Evaluation Questions:

1. With the aid of a diagram explain decrease in supply.

Answer:

Decrease in supply is the shift of the original supply curve to the left, indicating a fall in supply.

decrease in supply

 

 

2. A change in quantity demanded shows a movement along the demand curve, discuss.

Answer:

This is used to indicate an increase or decrease in demand that leads to a movement along the demand curve.

There are two types of movement namely;

1. Downward/Negative movement which is the expansionary demand curve.

2. Upward/Positive movement which is the contractionary demand curve.

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