A movement of the entire supply curve caused by a non-price determinant is called

• A. Movement along the supply curve
• B. Demand curve shift
• C. Supply curve shift
• D. Quantity demanded

Answer: (C)

A shift in the supply curve occurs when something other than the good’s price changes the quantity producers are willing to supply at every price. A non-price determinant—like technology, input costs, expectations, the number of sellers, or taxes/subsidies—alters the overall relationship between price and quantity supplied, so the entire curve moves left or right. That’s why this is called a supply curve shift: the change isn’t just a movement along the curve at one price, but a new supply relationship at all prices. For example, better technology lowers costs and shifts supply to the right, while higher input costs shift supply to the left.