We can combine the models we have seen so far to explain both real GDP and the price level in the long run. Real GDP is determined according to the production model, which is summarized in Table 4.1 of your textbook where the aggregate production function is Cobb-Douglas with labor share equal to 2/3. The price level is obtained from the quantity theory, which is summarized in Table 8.3 of your textbook. The nominal wage (in dollars) is the product of the real wage and the price level. (i) Express the equilibrium real wage as a function of the capital stock, labor force, and TFP Express the equilibrium nominal wage as a function of the money supply, velocity of money, and labor force. (ii) Suppose TFP increases. What happens to the real and nominal wages? (iii) Suppose the money supply increases. What happens to the real and nominal wages? Your answers must be detailed and you must provide the different steps leading to your

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We can combine the models we have seen so far to explain both real GDP and the price level in the long run. Real GDP is determined according to the production model, which is summarized in Table 4.1 of your textbook where the aggregate production function is Cobb-Douglas with labor share equal to 2/3. The price level is obtained from the quantity theory, which is summarized in Table 8.3 of your textbook. The nominal wage (in dollars) is the product of the real wage and the price level.

(i) Express the equilibrium real wage as a function of the capital stock, labor force, and TFP. Express the equilibrium nominal wage as a function of the money supply, velocity of money, and labor force.

(ii) Suppose TFP increases. What happens to the real and nominal wages?

(iii) Suppose the money supply increases. What happens to the real and nominal wages?

Your answers must be detailed and you must provide the different steps leading to your conclusions.
Transcribed Image Text:We can combine the models we have seen so far to explain both real GDP and the price level in the long run. Real GDP is determined according to the production model, which is summarized in Table 4.1 of your textbook where the aggregate production function is Cobb-Douglas with labor share equal to 2/3. The price level is obtained from the quantity theory, which is summarized in Table 8.3 of your textbook. The nominal wage (in dollars) is the product of the real wage and the price level. (i) Express the equilibrium real wage as a function of the capital stock, labor force, and TFP. Express the equilibrium nominal wage as a function of the money supply, velocity of money, and labor force. (ii) Suppose TFP increases. What happens to the real and nominal wages? (iii) Suppose the money supply increases. What happens to the real and nominal wages? Your answers must be detailed and you must provide the different steps leading to your conclusions.
**Table 4.1: The Production Model: 5 Equations and 5 Unknowns**

This table outlines a production model using five equations with five unknowns. Here's a detailed transcription and explanation:

**Unknowns/endogenous variables:**
- \( Y \) (Output)
- \( K \) (Capital used)
- \( L \) (Labor used)
- \( r \) (Rental rate of capital)
- \( w \) (Wage rate)

**Production function:**

\[ Y = A \overline{K}^{1/3} L^{2/3} \]

This equation models the output \( Y \) as a function of capital \( K \) and labor \( L \), with productivity parameter \( A \). The exponents \( \frac{1}{3} \) for capital and \( \frac{2}{3} \) for labor represent their respective contributions to production.

**Rule for hiring capital:**

\[ \frac{1}{3} \cdot \frac{Y}{K} = r \]

This equation determines the condition for hiring capital. It suggests that the marginal product of capital should equal the rental rate (\( r \)).

**Rule for hiring labor:**

\[ \frac{2}{3} \cdot \frac{Y}{L} = w \]

This condition is used for hiring labor, requiring the marginal product of labor to equal the wage rate (\( w \)).

**Demand = Supply for capital:**

\[ K = \overline{K} \]

This implies that the demand for capital equals the supply of capital.

**Demand = Supply for labor:**

\[ L = \overline{L} \]

This indicates that the demand for labor is equal to the supply of labor.

**Parameters/exogenous variables:**
- \( A \) (Total factor productivity)
- \( \overline{K} \) (Fixed supply of capital)
- \( \overline{L} \) (Fixed supply of labor)

This model is foundational in understanding how different factors contribute to production and how market conditions influence factor usage and compensation.
Transcribed Image Text:**Table 4.1: The Production Model: 5 Equations and 5 Unknowns** This table outlines a production model using five equations with five unknowns. Here's a detailed transcription and explanation: **Unknowns/endogenous variables:** - \( Y \) (Output) - \( K \) (Capital used) - \( L \) (Labor used) - \( r \) (Rental rate of capital) - \( w \) (Wage rate) **Production function:** \[ Y = A \overline{K}^{1/3} L^{2/3} \] This equation models the output \( Y \) as a function of capital \( K \) and labor \( L \), with productivity parameter \( A \). The exponents \( \frac{1}{3} \) for capital and \( \frac{2}{3} \) for labor represent their respective contributions to production. **Rule for hiring capital:** \[ \frac{1}{3} \cdot \frac{Y}{K} = r \] This equation determines the condition for hiring capital. It suggests that the marginal product of capital should equal the rental rate (\( r \)). **Rule for hiring labor:** \[ \frac{2}{3} \cdot \frac{Y}{L} = w \] This condition is used for hiring labor, requiring the marginal product of labor to equal the wage rate (\( w \)). **Demand = Supply for capital:** \[ K = \overline{K} \] This implies that the demand for capital equals the supply of capital. **Demand = Supply for labor:** \[ L = \overline{L} \] This indicates that the demand for labor is equal to the supply of labor. **Parameters/exogenous variables:** - \( A \) (Total factor productivity) - \( \overline{K} \) (Fixed supply of capital) - \( \overline{L} \) (Fixed supply of labor) This model is foundational in understanding how different factors contribute to production and how market conditions influence factor usage and compensation.
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