Demand worksheet showing scenarios where the price of cream cheese and beef affects the demand for bagels and chicken, respectively, with handwritten annotations explaining the changes.

Let's go through each scenario on the Demand Worksheet and analyze them carefully, explaining the economic concepts involved.

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Scenario 1: The price of cream cheese has risen.

Good in question: Demand for Bagels

#### 🔍 Analysis:
- Cream cheese and bagels are complementary goods — they are often consumed together.
- When the price of cream cheese increases, consumers will buy less cream cheese.
- As a result, the demand for bagels decreases, because people are less likely to buy bagels without cream cheese.
- This is a change in demand, not just a change in quantity demanded (which would be along the same demand curve due to a price change of the good itself).

#### ✔ Graph Interpretation:
- The original demand curve is D₁.
- Since demand for bagels decreases, the entire demand curve shifts leftward to D₂.
- The shift reflects that at every price, fewer bagels are demanded now.

#### 📌 Answer:
- Change in demand or quantity demanded: Change in demand
- Determinant: Price of a complementary good (cream cheese)

> 💡 *Note:* A "determinant" refers to a factor other than the price of the good itself that causes the demand curve to shift.

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Scenario 2: The price of beef has decreased.

Good in question: Demand for Chicken

#### 🔍 Analysis:
- Beef and chicken are substitute goods — people can choose one over the other.
- When the price of beef decreases, it becomes more attractive relative to chicken.
- Consumers will switch from chicken to beef → demand for chicken decreases.
- Again, this is a change in demand, not a movement along the curve.

#### ✔ Graph Interpretation:
- Original demand curve: D₁
- Since demand for chicken falls, the curve shifts leftward to D₂.
- At any given price, fewer chickens are demanded.

#### 📌 Answer:
- Change in demand or quantity demanded: Change in demand
- Determinant: Price of a substitute good (beef)

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✔ Summary Table:

| Scenario | Good Affected | Change Type | Determinant |
|--------|---------------|-------------|-------------|
| 1. Price of cream cheese ↑ | Bagels | Change in demand | Price of a complementary good |
| 2. Price of beef ↓ | Chicken | Change in demand | Price of a substitute good |

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🧠 Key Concept Recap:

- Change in Quantity Demanded: Movement along the demand curve due to a change in the price of the good itself.
- Change in Demand: Shift of the entire demand curve due to a non-price determinant (like income, prices of related goods, tastes, etc.).

In both scenarios, the price change was not of the good being analyzed (bagels or chicken), but of a related good, so these are shifts in demand.

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✔ Your red markings appear mostly correct:
- You drew the demand curves shifting left (from D₁ to D₂) — correct.
- You labeled “Compl.” (complement) and “Subst.” (substitute) — correct determinants.
- But make sure you write full names or clarify if needed.

Let me know if you'd like help drawing the graphs neatly or turning this into a completed worksheet!