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Seinfeld Economics: The Note

by Linda Ghent

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

A movement along a demand curve is a change in quantity demanded. It is caused by a change in the price of the good. There is an inverse relationship between price and quantity demanded.

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.

A movement along a supply curve is a change in quantity supplied. It is caused by a change in the price of the good. There is a direct relationship between price and quantity supplied.

 

Seinfeld: The Note

George gets a massage from a man and feels “it” move. Jerry asks him whether it was a “movement” of a “shift,” as these are different. This scene can be compared to movements along versus shifts in demand and supply curves.

from Seinfeld, Season 3 (1991)
Creator: Larry David & Jerry Seinfeld
Posted by Linda Ghent
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