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Difference between Shift in Supply curve and Movement in Supply curve

Difference between Shift in Supply curve and Movement in Supply curve



Movement Along a supply curve

The shift in the supply curve

Movement along a supply curve occurs due to price.

The shift in the supply curve occurs due to factors other than price, such as income, technology, climate, future price expectations, etc.

Other things remain constant in movement along supply curve.

Other things change in a shift in the supply curve.

There are expansion and contraction of the supply curve.

  •         Expansion: When quantity supply increases.
  •        Contraction: When quantity supply decreases.

There are rightward shifts and leftward shifts in the supply curve.

  •          Rightward Shift: When quantity supplied increases.   
  •       Leftward shift: When quantity supplied decreases.

Movement Along a supply curve is also termed as ‘change in quantity supplied.’

The shift in the supply curve is also termed as ‘change in supply.’

Movement Along a supply curve does not affect the equilibrium.

The shift in the supply curve changes the equilibrium.

Movement Along a supply curve occurs in the same supply curve.

A shift in the supply curve occurs when the supply curve changes.




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