1. Suppose real GDP is currently $500 billion. Assuming that the price level remains constant, this would mean that (first blank) (choices in picture)     2. Which would send a signal to firms to either:  A. Increase production B. Keep production the same C. Decrease production

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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1. Suppose real GDP is currently $500 billion. Assuming that the price level remains constant, this would mean that (first blank) (choices in picture)

 

 

2. Which would send a signal to firms to either: 

A. Increase production

B. Keep production the same

C. Decrease production

 

### 6. Aggregate Expenditure and Income

Suppose the following table shows consumption (C), investment (I), government purchases (G), and net exports (NX) in a hypothetical economy for various levels of real GDP. Assume that the price level remains unchanged at all levels of real GDP.

| Real GDP (Billions of dollars) | C (Billions of dollars) | I (Billions of dollars) | G (Billions of dollars) | NX (Billions of dollars) |
|--------------------------------|-------------------------|-------------------------|-------------------------|--------------------------|
| 500                            | 425                     | 200                     | 150                     | -50                      |
| 600                            | 450                     | 200                     | 150                     | -50                      |
| 700                            | 475                     | 200                     | 150                     | -50                      |
| 800                            | 500                     | 200                     | 150                     | -50                      |
| 900                            | 525                     | 200                     | 150                     | -50                      |

The following graph shows real GDP on the horizontal axis and aggregate expenditure on the vertical axis.

**Instructions:**
Use the orange line (square symbol) to plot a 45-degree line on this graph. Then use the blue points (circle symbols) to plot the aggregate expenditure line for this economy.

### Explanation of Graphs and Diagrams:

The table presented above lists the various components that comprise the aggregate expenditure in an economy at different levels of real GDP. These components include:
- **Consumption (C):** The amount of goods and services consumed.
- **Investment (I):** Expenditures on goods and services intended to create future benefits, such as business investments in equipment.
- **Government Purchases (G):** Total government expenditures on goods and services.
- **Net Exports (NX):** The value of a country's exports minus its imports.

To graphically represent this data, the x-axis (horizontal axis) of the graph will display Real GDP values, while the y-axis (vertical axis) will display Aggregate Expenditure values. The steps to construct this graph are:

1. **45-Degree Line:** Plot a 45-degree line (using square symbols) where every point on this line indicates that the value on the y-axis is equal to the value on the x-axis.
2. **Aggregate Expenditure Line:** Using blue points (circle symbols),
Transcribed Image Text:### 6. Aggregate Expenditure and Income Suppose the following table shows consumption (C), investment (I), government purchases (G), and net exports (NX) in a hypothetical economy for various levels of real GDP. Assume that the price level remains unchanged at all levels of real GDP. | Real GDP (Billions of dollars) | C (Billions of dollars) | I (Billions of dollars) | G (Billions of dollars) | NX (Billions of dollars) | |--------------------------------|-------------------------|-------------------------|-------------------------|--------------------------| | 500 | 425 | 200 | 150 | -50 | | 600 | 450 | 200 | 150 | -50 | | 700 | 475 | 200 | 150 | -50 | | 800 | 500 | 200 | 150 | -50 | | 900 | 525 | 200 | 150 | -50 | The following graph shows real GDP on the horizontal axis and aggregate expenditure on the vertical axis. **Instructions:** Use the orange line (square symbol) to plot a 45-degree line on this graph. Then use the blue points (circle symbols) to plot the aggregate expenditure line for this economy. ### Explanation of Graphs and Diagrams: The table presented above lists the various components that comprise the aggregate expenditure in an economy at different levels of real GDP. These components include: - **Consumption (C):** The amount of goods and services consumed. - **Investment (I):** Expenditures on goods and services intended to create future benefits, such as business investments in equipment. - **Government Purchases (G):** Total government expenditures on goods and services. - **Net Exports (NX):** The value of a country's exports minus its imports. To graphically represent this data, the x-axis (horizontal axis) of the graph will display Real GDP values, while the y-axis (vertical axis) will display Aggregate Expenditure values. The steps to construct this graph are: 1. **45-Degree Line:** Plot a 45-degree line (using square symbols) where every point on this line indicates that the value on the y-axis is equal to the value on the x-axis. 2. **Aggregate Expenditure Line:** Using blue points (circle symbols),
**Understanding Economic Equilibrium and Inventory Adjustments**

### The Concept of Economic Equilibrium

Economic equilibrium occurs when the economy is balanced, meaning there is no inherent tendency to change the levels of output, employment, and other economic variables.

- **When the economy is in equilibrium**:
  - **Aggregate expenditure must also equal $500 billion**.

### Inventory Adjustments in Response to Disequilibrium

When the economy is not in equilibrium, firms will often adjust their inventory levels accordingly:

1. **Reduction in Inventories**:
   - **Firms would have a $225 billion reduction in inventories**. 
   - This occurs when the actual output exceeds aggregate expenditure, leading firms to deplete their inventories to meet the demand.

2. **Excess Inventories**:
   - **Firms would have excess inventories of $225 billion**.
   - This situation arises when aggregate expenditure falls short of the actual output, resulting in unsold goods piling up in firms' inventories.

### Implications of Inventory Changes

- When there is a change in inventory levels and the price level remains constant, it sends signals to firms:
  - If firms experience a reduction in inventories, it signals them to **increase production to replenish the stocks**.
  - If firms face excess inventories, it indicates the need to **reduce production until the surplus inventories are drawn down**.

This dynamic adjustment helps in guiding firms' production decisions to align with aggregate demand, thereby moving the economy towards equilibrium.

---

**Note**: The text is supplemented with a drop-down interaction to indicate possible choices for the sentences, which would typically be part of an educational exercise to reinforce understanding of economic concepts.
Transcribed Image Text:**Understanding Economic Equilibrium and Inventory Adjustments** ### The Concept of Economic Equilibrium Economic equilibrium occurs when the economy is balanced, meaning there is no inherent tendency to change the levels of output, employment, and other economic variables. - **When the economy is in equilibrium**: - **Aggregate expenditure must also equal $500 billion**. ### Inventory Adjustments in Response to Disequilibrium When the economy is not in equilibrium, firms will often adjust their inventory levels accordingly: 1. **Reduction in Inventories**: - **Firms would have a $225 billion reduction in inventories**. - This occurs when the actual output exceeds aggregate expenditure, leading firms to deplete their inventories to meet the demand. 2. **Excess Inventories**: - **Firms would have excess inventories of $225 billion**. - This situation arises when aggregate expenditure falls short of the actual output, resulting in unsold goods piling up in firms' inventories. ### Implications of Inventory Changes - When there is a change in inventory levels and the price level remains constant, it sends signals to firms: - If firms experience a reduction in inventories, it signals them to **increase production to replenish the stocks**. - If firms face excess inventories, it indicates the need to **reduce production until the surplus inventories are drawn down**. This dynamic adjustment helps in guiding firms' production decisions to align with aggregate demand, thereby moving the economy towards equilibrium. --- **Note**: The text is supplemented with a drop-down interaction to indicate possible choices for the sentences, which would typically be part of an educational exercise to reinforce understanding of economic concepts.
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