The Note
change in demand | change in supply | movement along a demand curve | movement along a supply curve
A change in supply is a shift in the supply curve. It may be caused by many factors, but not a change in the price of the good. An increase in supply shifts the supply curve to the right, while a decrease in supply shifts the supply curve to the left.
change in demand | change in supply | movement along a demand curve | movement along a supply curve