Question: Question 18 (0.28 points)
The following image represents the supply and demand model. In this exercise, you will display your understanding of the model by identifying what each of the letters (A, B, C, D, E, F, G, H, I) represents according to the definitions and labeling conventions used by economists and presented in the course
A: y-axis / price axis, position_hint \in {top-left}
B: downward-sloping demand curve, position_hint \in {top-left}
C: horizontal bracket marking the price level around 3.00, position_hint \in {center}
D: upward-sloping supply curve, position_hint \in {top-right}
E: equilibrium point where supply and demand intersect at about (10.0, 2.00), position_hint \in {center}
F: horizontal bracket marking quantity range around 9.5 to 11.0 near price 1.00, position_hint \in {center}
G: x-axis / quantity axis, position_hint \in {bottom-right}
H: x-axis break / scale shift near the origin, position_hint \in {bottom-left}
I: arrow pointing to the y-axis lower-left area / axis break region, position_hint \in {bottom-left}
1. Price
2. The demand curve
3. Excess supply/surplus
4. the supply curve
5. Equilibrium
6. Excess demand/shortage
7. Quantity
8. Equilibrium Quantity
9. Equilibrium price
Graph shapes and math:
A vertical axis labeled Price and a horizontal axis labeled Quantity; a downward-sloping demand curve and an upward-sloping supply curve intersect at the equilibrium point. top-left
1. **Problem Statement:** Identify what each letter (A, B, C, D, E, F, G, H, I) represents in the supply and demand model graph.
2. **Key Concepts and Definitions:**
- Price is represented on the vertical axis (y-axis).
- Quantity is represented on the horizontal axis (x-axis).
- The demand curve slopes downward, showing that as price decreases, quantity demanded increases.
- The supply curve slopes upward, showing that as price increases, quantity supplied increases.
- The equilibrium point is where supply equals demand.
- Excess supply (surplus) occurs when quantity supplied exceeds quantity demanded.
- Excess demand (shortage) occurs when quantity demanded exceeds quantity supplied.
3. **Letter Identification:**
- A: y-axis / price axis \rightarrow **Price** (1)
- B: downward-sloping demand curve \rightarrow **The demand curve** (2)
- C: horizontal bracket marking price level around 3.00 \rightarrow **Excess supply/surplus** (3)
- D: upward-sloping supply curve \rightarrow **The supply curve** (4)
- E: equilibrium point at about (10.0, 2.00) \rightarrow **Equilibrium** (5)
- F: horizontal bracket marking quantity range around 9.5 to 11.0 near price 1.00 \rightarrow **Excess demand/shortage** (6)
- G: x-axis / quantity axis \rightarrow **Quantity** (7)
- H: x-axis break / scale shift near origin \rightarrow **Equilibrium Quantity** (8)
- I: arrow pointing to y-axis lower-left area / axis break region \rightarrow **Equilibrium price** (9)
4. **Explanation:**
- The y-axis (A) represents the price level.
- The demand curve (B) slopes downward, indicating inverse relationship between price and quantity demanded.
- The supply curve (D) slopes upward, indicating direct relationship between price and quantity supplied.
- The equilibrium point (E) is where supply and demand curves intersect, indicating market equilibrium price and quantity.
- The brackets (C and F) indicate regions of surplus (excess supply) and shortage (excess demand) respectively.
- The x-axis (G) represents quantity.
- The breaks (H and I) indicate scale shifts or axis breaks to better display data near the origin or low values.
**Final answer:**
A = Price
B = Demand curve
C = Excess supply/surplus
D = Supply curve
E = Equilibrium
F = Excess demand/shortage
G = Quantity
H = Equilibrium Quantity
I = Equilibrium price