Question 1: Cobb-Douglas and returns to scaleEarlier in this class, you learned that the exponents in the Cobb-Douglas utility function had importanteconomic interpretations. In this question, we will learn about the exponents in the Cob-Douglas productionfunction.Consider the following Cobb-Douglas production function:f(k.1) = k*P°, where a > 0 and 8 > 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 toscale, increasing returns to scale, or decreasing returns to scale? What if a +8 = 1? What if a+§ > 1?3. Now suppose that a = 1/3 and 8 = 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 Edgeworthcomplements or substitutes?4. The firm's profit maximization problem is max 1&,3) pk3l3 – ul – rk, given market prices w, r, and p.Solve for the firm's factor demand functions l* (w,r,p) and k' (w,r,p), and its output supply functiony'(u,r,p). Solve for the firm's proft function r1(u,r,p).5. Now suppose that a = 1/2 and § = 1/2. Solve for the firm's factor demand functions l* (u,r,p) andk(w, r,p), and its output supply function y*(u,r,p). Did you run into any problems? Why or whynot?

a) f(k,l) = kαlβf(nk,nl) = (nk)α(nl)β f(nk,nl) =nαkαnβlβf(nk,nl) =nα+β*(kαlβ)It is given that α>0…

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?

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ISBN:9780190931919

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Chapter1: Making Economics Decisions

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