What happens to the demand curve for toasters if the price of bread rises? Show in a supply-demand diagram how the equilibrium price and quantity of toasters change.
The correct answer and explanation is :
Correct Answer:
When the price of bread rises, the demand for toasters decreases because bread and toasters are complementary goods (goods that are often used together). This shifts the demand curve for toasters to the left, resulting in a lower equilibrium price and quantity for toasters.
300-Word Explanation:
Toasters and bread are complementary goods because they are typically consumed together—people buy toasters to toast bread. When the price of bread rises, bread becomes more expensive for consumers. As a result, people buy less bread. Since fewer people are buying bread, fewer people will need or want to buy a toaster.
In economic terms, a rise in the price of a complementary good (bread) leads to a decrease in the demand for the related good (toasters). On a supply and demand graph, this is shown as a leftward shift of the demand curve for toasters.
The supply curve stays the same because the price of bread does not affect the production cost or availability of toasters. However, the new intersection point between the unchanged supply curve and the shifted (leftward) demand curve occurs at a lower price and a lower quantity than before.
Thus, both the equilibrium price and the equilibrium quantity of toasters decrease. Manufacturers may respond to this situation by lowering prices to encourage sales or producing fewer toasters to adjust to the reduced demand.
This type of market behavior reflects the importance of relationships between goods. It shows that changes in one market (bread) can spill over into other markets (toasters), illustrating the interconnected nature of economic goods.
- D1 = Original demand for toasters
- D2 = New, lower demand after bread price increases
- X = Original equilibrium (higher price and quantity)
- New equilibrium is lower and to the left.