If the supply and demand for a product both decrease then equilirium quantity and equilibrium price must both A decline. quantity and equilibrium price must both В increase. price must fall, but equilibrium quantity C may either rise, fall, or remain unchanged. quantity must decline, but equilibrium D) price may either rise, fall, or remain unchanged. quantity must fall and equilibrium price (E must rise.

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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**Understanding Changes in Equilibrium: Supply and Demand**

When analyzing economic concepts, particularly concerning the equilibrium of supply and demand, it is essential to understand how variations in these factors affect the market. Below, we consider the situation where both the supply and demand for a product decrease. How do these changes impact equilibrium quantity and price? Explore the possible outcomes described in each scenario:

### Scenarios

**A)**  
- **Statement:** Quantity and equilibrium price must both decline.
- **Explanation:** This suggests that the reduction in both supply and demand leads to lower quantity and price.

**B)**  
- **Statement:** Quantity and equilibrium price must both increase.
- **Explanation:** This scenario implies that a decrease in supply and demand will result in higher quantity and price, which is counterintuitive to basic economic principles.

**C)**  
- **Statement:** Price must fall, but equilibrium quantity may either rise, fall, or remain unchanged.
- **Explanation:** Here, the price decreases due to reduced demand, while the change in equilibrium quantity is uncertain because it also depends on the magnitude of the shift in supply.

**D)**  
- **Statement:** Quantity must decline, but equilibrium price may either rise, fall, or remain unchanged.
- **Explanation:** This scenario indicates a definitive drop in quantity due to less supply, while the equilibrium price could vary depending on the relative shifts in supply and demand.

**E)**  
- **Statement:** Quantity must fall and equilibrium price must rise.
- **Explanation:** The premise here is that both reduced demand and supply lead to a lower quantity, but a rise in equilibrium price due to a relatively sharper decrease in supply compared to demand.


### Conclusion

Economics often involves investigating how various factors interact to influence market outcomes. By examining these scenarios, we grasp better how changes in supply and demand impact equilibrium in different ways. In reality, both supply and demand dynamics must be considered together to predict precise market behavior.
Transcribed Image Text:**Understanding Changes in Equilibrium: Supply and Demand** When analyzing economic concepts, particularly concerning the equilibrium of supply and demand, it is essential to understand how variations in these factors affect the market. Below, we consider the situation where both the supply and demand for a product decrease. How do these changes impact equilibrium quantity and price? Explore the possible outcomes described in each scenario: ### Scenarios **A)** - **Statement:** Quantity and equilibrium price must both decline. - **Explanation:** This suggests that the reduction in both supply and demand leads to lower quantity and price. **B)** - **Statement:** Quantity and equilibrium price must both increase. - **Explanation:** This scenario implies that a decrease in supply and demand will result in higher quantity and price, which is counterintuitive to basic economic principles. **C)** - **Statement:** Price must fall, but equilibrium quantity may either rise, fall, or remain unchanged. - **Explanation:** Here, the price decreases due to reduced demand, while the change in equilibrium quantity is uncertain because it also depends on the magnitude of the shift in supply. **D)** - **Statement:** Quantity must decline, but equilibrium price may either rise, fall, or remain unchanged. - **Explanation:** This scenario indicates a definitive drop in quantity due to less supply, while the equilibrium price could vary depending on the relative shifts in supply and demand. **E)** - **Statement:** Quantity must fall and equilibrium price must rise. - **Explanation:** The premise here is that both reduced demand and supply lead to a lower quantity, but a rise in equilibrium price due to a relatively sharper decrease in supply compared to demand. ### Conclusion Economics often involves investigating how various factors interact to influence market outcomes. By examining these scenarios, we grasp better how changes in supply and demand impact equilibrium in different ways. In reality, both supply and demand dynamics must be considered together to predict precise market behavior.
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