move from P1 = 20, Q1 = 14 to P2 = 22 and Q2 = 8, is this a change in demand or a change in quantity demanded
also this one: P1 = 22 and Q1 = 13 to P2 = 26 and Q2 = 11
To determine whether these scenarios represent a change in demand or a change in quantity demanded, we need to consider the factors that influence each.
1. P1 = 20, Q1 = 14 to P2 = 22 and Q2 = 8:
- To determine if this is a change in demand or a change in quantity demanded, we need to compare the price and quantity values.
- If the price remains constant, but the quantity demanded changes, it represents a change in quantity demanded.
- In this scenario, the price increased from P1 = 20 to P2 = 22 while the quantity demanded decreased from Q1 = 14 to Q2 = 8.
- Since the price changed (causing the change in quantity demanded), it is a change in quantity demanded.
2. P1 = 22 and Q1 = 13 to P2 = 26 and Q2 = 11:
- Similarly, we need to compare the price and quantity values to determine whether it's a change in demand or a change in quantity demanded.
- In this case, the price increased from P1 = 22 to P2 = 26, while the quantity demanded decreased from Q1 = 13 to Q2 = 11.
- As the quantity demanded changes due to the change in price, it is once again a change in quantity demanded.
Both scenarios represent changes in quantity demanded because the changes observed are predominantly due to price fluctuations. A change in demand refers to shifts in the entire demand curve caused by factors other than price.