Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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
Transcribed Image Text:Title: Deriving the Short-Run Supply Curve
---
In a perfectly competitive market for halogen lamps, understanding cost structures is crucial for firms to determine their supply. Below is a description of a graph that illustrates various cost curves relevant to a typical firm in this industry.
---
### Graph Analysis:
#### Axes:
- **Horizontal Axis (X-Axis):** Quantity of Output (Thousands of lamps)
- **Vertical Axis (Y-Axis):** Price and Cost (per lamp)
#### Curves Displayed:
1. **Marginal Cost (MC) Curve:**
- Represented by an orange line with square markers.
- Typically U-shaped, indicating that the marginal cost decreases initially with increased output due to economies of scale and then increases due to diseconomies of scale.
2. **Average Total Cost (ATC) Curve:**
- Represented by a green line with circular markers.
- U-shaped due to the initial spread of fixed costs over more units as production increases, followed by increasing variable costs.
3. **Average Variable Cost (AVC) Curve:**
- Represented by a purple line with no markers.
- Lies below the ATC curve and is also U-shaped, but starts to rise after reaching a minimum point.
The intersection of the MC curve with the ATC and AVC curves provides critical insights into pricing and production decisions. The MC curve initially falls, reaches a minimum, and then rises, showing the cost to produce an additional unit. Understanding these intersections can aid firms in setting output levels that maximize profitability in the short run.
---
This graph is a fundamental tool for analyzing how a firm in a competitive market determines its short-run supply based on cost structures.

Transcribed Image Text:**Homework (Ch 08)**
When the price is exactly equal to the average variable cost, the firm is indifferent between producing zero lamps and the loss-minimizing quantity. Also, indicate whether the firm will produce, shut down, or be indifferent between the two in the short run. Lastly, determine whether it will make a profit, suffer a loss, or break even at each price.
| Price (Dollars per lamp) | Output (Lamps) | Produce or Shut Down? | Profit or Loss? |
|--------------------------|----------------|-----------------------|-----------------|
| 4 | | | |
| 8 | | | |
| 12 | | | |
| 36 | | | |
| 48 | | | |
| 60 | | | |
On the following graph, use the orange points (square symbol) to plot points along the portion of the firm's short-run supply curve that corresponds to prices where there is positive output. *(Note: You are given more points to plot than you need.)*
**Graph Explanation:**
The graph titled "Firm's Short-Run Supply" has the y-axis labeled "Price (Dollars per lamp)" ranging from 32 to 80, in increments of 8. The x-axis is not labeled but is implied to represent quantity or output. An orange square symbol is used for plotting specific points on the graph to represent the firm's short-run supply curve.
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