Correct Answer: (1) Real wage rate is equal to the Marginal Productivity of Labour.
Note: Real wage rate is equal to the Marginal Productivity of Labour
• The marginal productivity theory of wage states that the price of labour, i.e., wage rate, Is determined according to the marginal product of labour.
• Real wage rate is equal to the Marginal Productivity of Labour.
• The marginal product of labor shows how much output changes as an additional unit of labor is employed.
• The real wage shows how much an employer's variable costs change when an additional unit of labor is employed.