Consider the following Cob-Douglas production function: f(k.1) = K°P°, where a 20 and > 0. 1. Show that the production function is homogeneous of degree n in inputs. What does n equal? 2. Using your answer from part (1), if a + 3 < 1, is the Cobb-Douglas production constant returns to scale, increasing returns to scale, or decreasing returns to scale? What if a+8 = 1? What if a+8 > 1? 3. Now suppose that a = 1/3 and = 1/3. What is the firm's marginal product of labor (MP)? What happens to the MP, when the firm's use of labor increases? Are labor and capital Edgeworth complements or substitutes?
Consider the following Cob-Douglas production function: f(k.1) = K°P°, where a 20 and > 0. 1. Show that the production function is homogeneous of degree n in inputs. What does n equal? 2. Using your answer from part (1), if a + 3 < 1, is the Cobb-Douglas production constant returns to scale, increasing returns to scale, or decreasing returns to scale? What if a+8 = 1? What if a+8 > 1? 3. Now suppose that a = 1/3 and = 1/3. What is the firm's marginal product of labor (MP)? What happens to the MP, when the firm's use of labor increases? Are labor and capital Edgeworth complements or substitutes?
Chapter9: Production Functions
Section: Chapter Questions
Problem 9.5P
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