Questions: Which of the following moves the pizza market up along a given supply curve? a. A decrease in the price of cheese, an input to pizza b. A kitchen fire that destroys a popular pizza joint c. An increase in the price of root beer, a complement to pizza d. An increase in the price of pizza

The answer is d: An increase in the price of pizza.

Explanation for each option:

a. A decrease in the price of cheese, an input to pizza: This would cause the supply curve to shift to the right, as the cost of production decreases, allowing producers to supply more pizza at each price level. It does not move the market up along the existing supply curve.

b. A kitchen fire that destroys a popular pizza joint: This would cause the supply curve to shift to the left, as the overall supply of pizza in the market decreases due to the loss of a supplier. It does not move the market up along the existing supply curve.

c. An increase in the price of root beer, a complement to pizza: This would likely decrease the demand for pizza, as the higher price of a complement makes the combination less attractive to consumers. It does not move the market up along the existing supply curve.

d. An increase in the price of pizza: This would move the market up along the existing supply curve, as suppliers are willing to supply more pizza at higher prices, assuming other factors remain constant.

In summary, an increase in the price of pizza results in movement up along the given supply curve, as it directly affects the quantity supplied at different price levels.