Which of the following is a non-price determinant of supply that would shift the supply curve for a good?

• A. A movement along the supply curve caused by a change in quantity supplied
• B. A change in the price of a key input used to produce the good
• C. A change in the price of the good itself
• D. A change in the market demand for the good

Answer: (B)

Verified step by step guidance

1. Understand the difference between a movement along the supply curve and a shift of the supply curve. A movement along the supply curve happens when the price of the good itself changes, affecting the quantity supplied.
2. Identify what causes a shift in the supply curve. A shift occurs when a non-price determinant of supply changes, meaning factors other than the good's own price affect supply.
3. List common non-price determinants of supply, such as changes in input prices, technology, number of sellers, expectations, and government policies.
4. Analyze each option: a change in the price of the good itself causes movement along the curve, not a shift; a change in market demand affects demand, not supply; a change in the price of a key input affects production costs and thus shifts the supply curve.
5. Conclude that the correct non-price determinant of supply that shifts the supply curve is a change in the price of a key input used to produce the good.