Solution 1 Intermediate Microeconomics ECON 340 Problem Set 2 Due on Tuesday February 16th at the beginning of class Please write on your homework your full
Solution Intermediate Microeconomics ECON Problem Set Due on Tuesday February th at the beginning of class Please write
Solution Intermediate Microeconomics ECON Problem Set Due on Tuesday February th at the
Problem Set Due on Tuesday February th at the beginning of class Please write on your homework your full
Solution Intermediate Microeconomics ECON Problem Set Due on Tuesday February th
at the beginning of class Please write on your homework your full
Solution Intermediate Microeconomics ECON Problem Set Due on Tuesday
Solution Intermediate Microeconomics ECON
(Solution) 1 Intermediate Microeconomics ECON 340 Problem Set 2 Due on Tuesday February 16th at the beginning of class Please write on your homework your full...

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Please provide the explanation on the approach to the solution.1 1 ECON 340 Spring 2016 Vargas Intermediate Microeconomics ECON 340 Problem Set 2 Due on Tuesday February 16th at the beginning of class Please write on your homework your full name, as it appears in Blackboard, and your student ID number. Write neatly and show how you arrived at every single answer on the problem set. You will receive ZERO credit for any answer where you don’t show your work. 1. (20 pts) a) (5pts) Identify the returns to scale of the following production functions: i. °(?, ?) = ? 3/4 ? 1/4 , ii. °(?, ?) = 2? 1/± + ? 1/± , iii. °(?, ?) = ? 1/3 ? ±/3 ? 2 , iv. °(?, ?) = 1 ± ? 3/± ? 1/± . b) (5pts) From the production functions above, select the one that exhibits Constant Returns to Scale (CRTS) and compute the marginal product of labor, marginal product of capital, average product of labor, and average product of capital. Does the law of diminishing marginal returns hold? Why? c) (5pts) Derive the Marginal Rate of Technical Substitutions (MRTS) between capital and labor for the production function selected above. Does the law of diminishing MRTS hold? Why? Derive the equation for a sample isoquant and draw three isoquants for the production function selected above. Be sure to label as many points as you can. d) (5pts) Compute and interpret the elasticity of substitution at point (K 1 , L 1 ) = (2,2) when capital is increased by one unit. 2. (30 pts) Consider a firm that uses two inputs, capital (K) and labor (L), to produce output (Q). The production function is given by: Q = L 1/3 K 1/3 . The firm can hire as much labor as it wants at a wage of w=$ 9 per hour and can rent as much capital as it wants at a price of r= $81 per hour. a. (5 pts) Does the production function exhibit constant, decreasing, or increasing returns to scale? b. (5 pts) Solve for the optimal input combination to produce 100 units of output. c. (5 pts) For arbitrary values of w, r, and Q, solve for the (long run) input demand curves. d. (5 pts) For arbitrary values of w, r, and Q, solve for the long run cost function. Graph this cost function when w=$ 9 and r= $81. e. (5pts) Derive the long run average cost function. Does this cost function exhibit economies of scale, diseconomies of scale, or constant returns to scale? Why? f. (5 pts) Suppose that the firm's capital is fixed in the short run at K . Find the firm's short run demand for labor and the corresponding cost function.

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