Answer:
An increase in the price of pizza dough.
Explanation:
A decrease in the number of consumers in the area: This would lead to a decrease in demand for pizza. Lower demand typically results in a lower equilibrium price.
A decrease in the price of burgers: Burgers are a substitute for pizza. If burgers become cheaper, some people might switch from eating pizza to eating burgers, leading to a decrease in demand for pizza. This would typically result in a lower equilibrium price for pizza.
An increase in the price of pizza dough: Pizza dough is a key ingredient for making pizza, so this represents an increase in production costs for pizza makers. Higher production costs would likely lead to a decrease in supply (fewer pizzas being made), as it becomes more expensive to produce pizza. A decrease in supply, with demand remaining constant, typically results in a higher equilibrium price.
An increase in the number of pizza restaurants: This would increase the supply of pizza in the area. With more pizza available and demand remaining constant, the typical result would be a lower equilibrium price.
