Let’s go through each row of the table and check if the “Demand increases or decreases?” column (marked I for Increase, D for Decrease) matches the explanation given.
We’ll think about what happens to demand when each determinant changes — based on basic economics logic that a student can understand.
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1. Population increases → I
More people = more buyers → more demand. ✔️ Correct.
2. Population decreases → D
Fewer people = fewer buyers → less demand. ✔️ Correct.
3. Increase in most peoples’ income → I
People have more money → they buy more → demand goes up. ✔️ Correct.
4. Decrease in most peoples’ income → D
People have less money → they buy less → demand goes down. ✔️ Correct.
5. Price of substitute increases → I
If fish gets expensive, people switch to meat → demand for meat goes up. ✔️ Correct.
6. Price of substitute decreases → D
If fish gets cheaper, people buy more fish, less meat → demand for meat goes down. ✔️ Correct.
7. Price of complementary good increases → D
Peanut butter and jelly go together. If peanut butter gets expensive, people buy less jelly too → demand for jelly falls. ✔️ Correct.
8. Price of complementary good decreases → I
If peanut butter gets cheaper, people buy more peanut butter AND more jelly → demand for jelly rises. ✔️ Correct.
9. Product becomes a popular fad → I
Everyone wants it now → demand goes up at every price. ✔️ Correct.
10. Product now out of fashion → D
Nobody wants it anymore → demand drops at every price. ✔️ Correct.
11. Expectation that price will soon fall → D
If you think something will be cheaper next week, you wait to buy → current demand falls. ✔️ Correct.
12. Fear that economy will go [bad] → D
If people are scared about jobs or money, they spend less → demand falls. ✔️ Correct.
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✔ All rows match correctly. The table is already filled in accurately.
Final Answer:
All entries in the "Demand increases or decreases?" column are correct as shown in the table.
Parent Tip: Review the logic above to help your child master the concept of demand worksheet answers.
