Correct Option: A. Demand for tea will increase
Detailed Explanation:
- Understanding Substitutes:
-
Substitutes are goods that can replace each other in consumption. When the price of one substitute rises, consumers often switch to the other substitute. In this case, coffee and tea are considered substitutes.
-
Price Increase of Coffee:
-
When the price of coffee rises significantly, it becomes more expensive for consumers. This price change affects consumer behavior.
-
Consumer Behavior:
-
As coffee becomes more expensive, some consumers will look for alternatives that provide similar satisfaction at a lower price. Since tea is a substitute for coffee, many consumers will start to buy more tea instead of coffee.
-
Demand Curve Shift:
-
The increase in demand for tea can be illustrated using the demand curve. When the demand for a good increases, the demand curve shifts to the right. This means that at every price level, consumers are willing to buy more tea than before.
-
Market Dynamics:
- As more consumers switch to tea, the demand for tea increases. This can lead to an increase in the price of tea as well, depending on the supply elasticity of tea. However, the immediate effect we are focusing on is the increase in demand for tea due to the rise in coffee prices.
Why Other Options Are Incorrect:
- Option B: Demand for tea will decrease:
-
This option is incorrect because a rise in the price of coffee does not lead to a decrease in the demand for tea. Instead, it leads to an increase as consumers seek alternatives.
-
Option C: Demand for coffee will increase:
-
This option is also incorrect. A significant rise in the price of coffee typically leads to a decrease in the quantity demanded for coffee, not an increase. Higher prices usually deter consumers from purchasing the same quantity of the good.
-
Option D: Demand for coffee will remain unchanged:
- This option is misleading. While the demand for coffee may remain unchanged in the long term if consumers are loyal, the immediate effect of a price increase is a decrease in the quantity demanded, not a stable demand.
Common Pitfalls:
- Confusing Demand with Quantity Demanded: It's important to distinguish between a change in demand (shift of the demand curve) and a change in quantity demanded (movement along the demand curve). A price increase leads to a decrease in quantity demanded, not a change in demand itself.
- Assuming All Consumers React the Same Way: While many consumers will switch to tea, not all will. Some may continue to buy coffee despite the price increase due to brand loyalty or preference.
Revision Summary:
- When the price of a substitute good (coffee) rises, the demand for its substitute (tea) typically increases.
- Consumers seek alternatives when faced with higher prices, leading to a rightward shift in the demand curve for the substitute.
- The immediate effect of a price increase in coffee is an increase in the demand for tea, not a decrease or unchanged demand for coffee.
- Understanding the concepts of substitutes and consumer behavior is crucial in analyzing market dynamics.