Y = 5K0.6LD.4 1. [10 points) Is the production function constant increasing, or decreasing returns to scale? Show your work. 2. [10 points) What is the marginal product of labor? Does the production function have diminishing marginal returns to labor? Show your work. 3. [10 points) Calculate the real wage as a function of Land Y. 4. [10 points) Calculate the share of output which labor receives (your answer should be a number)