A production function of three inputs

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Consider a production function of three inputs, labour, capital and materials, given by Q = LKM. Let w = 5, r = 1, and m = 2, where m is the price per unit of materials.
a) Suppose that the firm is required to produce Q units of output. Show how the cost-minimizing quantity of labour depends on the quantity Q. Show how the cost-minimizing quantity of capital depends on the quantity Q. Show how the cost-minimizing quantity of materials depends on the quantity Q.
b) Find the equation of the firm's long-run total cost curve.
c) Find the equation of the firm's long-run average cost curve.
d) Suppose that the firm is required to produce Q units of output, but that its capital is fixed at a quantity of 50 units. Show how the cost-minimizing quantity of labour depends on the quantity Q. Show how the cost-minimizing
quantity of materials depends on the quantity Q.
e) Find the equation of the short-run total cost curve, when capital is fixed (at 50 units) and graph it along with the long-run total cost curve.
f) Find the equation of the associated short-run average cost curve.

Reference no: EM13541160

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