In: Economics
Which of the following elasticities measure a movement along a
curve rather than a shift in the curve? (a) The price elasticity of
demand, (b) the income elasticity of demand (c) the cross
elasticity of demand, or (d) all of them
Price elasticity of demand.
Price elasticity of demand measure the change in the level of
quantity with respect to change in price level. Change in price
cause change in the slope of the demand curve. The higher rise in
price depicts using steeper demand curve. If the price level
increased the slope of the curve will be smaller and the curve
become steeper; and vice versa. The shift of the curve occurred
with change in factors other than price. Cross elasticity measures
the change in quantity with respect to change in the price of other
commodities. And income elasticity shows the change in quantity
with reference to change in income of the consumers. Both this
elasticity will create a shift in the demand curve rather than the
change in slope. The changing slope shows the change in price level
and the change in quantity demanded at the changing price
level.