Movement Along a demand curve

Shift in demand curve

Movement along a demand curve occurs due to price.

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

Other things remain constant in movement along the demand curve.

Other things change in a shift in the demand curve.

There are expansion and contraction of the demand curve.

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

There are upward shifts and downward shifts in the demand curve.

•            Upward Shift: When quantity demanded increases.
•            Downward shift: When quantity demanded decreases.

Movement Along a demand curve is also termed as ‘change in quantity demanded.’

A shift in the demand curve is also termed as a ‘change in demand.’

Movement Along a demand curve does not affect the equilibrium.

The shift in the demand curve changes the equilibrium.

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

The shift in the demand curve occurs when the demand curve changes.