11. The following questions are based on the following table below, which shows the relationship between the number of workers and coal output (in tons per day). Number of Workers Total Output of Coal 0 0 25 2 44 3 60 4 70 75 Suppose that the firm begins to hire workers for a newly completed plant with a fixed amount of machinery. As the firm hires additional workers, one would expect the marginal product to a. fall initially, but eventually rise. d. rise consistently due to the advantages of specialization. b. rise initially, but eventually fall. e. rise consistently due to economies of scale. c. rise consistently due to diminishing return. 12. If a firm employs only labor and capital in its production process, which of the following best describes the optimal combination of inputs for the firm in the long run? a. The marginal product per dollat spent on d. The marginal product of labor and capital labor is equal to the marginal product per are both zero. dollar spent on capital. b. The marginal product of labor is equal to e. All marginal products are equal to the marginal product of capital. average products. C. The total product of labor is equal to the total product of capital. 13. For a firm hiring labor in a perfectly competitive labor market, the marginal revenue product curve slopes downward after some point because as more of a factor is employed, which of the following declines? a. Marginal product d. Total output b. Marginal Resource Cost e . Wage rates c. Marginal Cost