2. A firm has a production function of q= 0.25KL05 and in the short-run capital is fixed at 100 (K = 100). The rental rate of capital = =r= $100. The wage rate = w= $25 а. Write the equation for the short-run production function. b. What is the firm's short-run demand for labor (L as a function of output)? а. What are the equations for the firm's short-run total costs (TC as a function of q), short-run average total costs (ATC as a function of q), and short-run marginal costs (MC as a function of q)?

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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### Problem 2: Production and Cost Functions

A firm has a production function given by:

\[ q = 0.25KL^{0.5} \]

In the short-run, capital is fixed at 100 (K = 100).

- **Rental rate of capital**: \( r = \$100 \)
- **Wage rate**: \( w = \$25 \)

**Questions:**

a. **Production Function**: Write the equation for the short-run production function.

b. **Labor Demand Function**: What is the firm’s short-run demand for labor (L as a function of output)?

c. **Cost Functions**: What are the equations for the firm’s short-run total costs (TC as a function of q), short-run average total costs (ATC as a function of q), and short-run marginal costs (MC as a function of q)? 

### Explanation

In the short-run, capital (K) is fixed, and firms adjust labor (L) to change output (q). The production function helps in deriving other important cost functions:
- **Total Cost (TC)** relates to both fixed costs (related to capital) and variable costs (related to labor).
- **Average Total Cost (ATC)** is the total cost divided by the quantity produced.
- **Marginal Cost (MC)** is the additional cost of producing one more unit of output.
Transcribed Image Text:### Problem 2: Production and Cost Functions A firm has a production function given by: \[ q = 0.25KL^{0.5} \] In the short-run, capital is fixed at 100 (K = 100). - **Rental rate of capital**: \( r = \$100 \) - **Wage rate**: \( w = \$25 \) **Questions:** a. **Production Function**: Write the equation for the short-run production function. b. **Labor Demand Function**: What is the firm’s short-run demand for labor (L as a function of output)? c. **Cost Functions**: What are the equations for the firm’s short-run total costs (TC as a function of q), short-run average total costs (ATC as a function of q), and short-run marginal costs (MC as a function of q)? ### Explanation In the short-run, capital (K) is fixed, and firms adjust labor (L) to change output (q). The production function helps in deriving other important cost functions: - **Total Cost (TC)** relates to both fixed costs (related to capital) and variable costs (related to labor). - **Average Total Cost (ATC)** is the total cost divided by the quantity produced. - **Marginal Cost (MC)** is the additional cost of producing one more unit of output.
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