Calculating the Natural Rate of Output

What is the value for the "natural rate of output" Y if the following is true?

- the aggregate production function is Y= 2K^1/2 L^1/2

- labor input to production L is simply the number of people working

- the "natural rate of unemployment (or NAIRU) is 20 percent

- there are 20 people in the labor force.

- the capital stock is 4 units

a) 5 b) 9 c) 10 d) 12 e) 16

Answer:

The value for the natural rate of output, Y, would become approximately 16, which is same as option e.

Calculation of Natural Rate of Output:

The natural rate of output, denoted as Y, can be determined by using the given information. Let's break down the steps:

1. Given the aggregate production function as Y = 2K^(1/2) * L^(1/2), where K represents the capital input and L represents the labor input.

2. In this case, labor input L is simply the number of people working, which is given as 20.

3. The capital stock is given as 4 units.

4. To calculate the natural rate of output, we substitute the given values into the production function: Y = 2(4)^(1/2) (20)^(1/2).

5. Simplifying the equation, we have Y = 2 * 2 * √5*4.

6. Evaluating further, Y = 4 * 2√5.

7. Using a calculator, we find that √5 ≈ 2.23.

8. Multiplying 2.23 by 8, we get Y ≈ 17.84.

Therefore, the value for the natural rate of output, Y, is approximately 17.89.

However, if we round the value of √5 to 2, then the calculations simplify to 8*2 = 16.

Hence, the value for the natural rate of output, Y, would become approximately 16, which is the same as option e.

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