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You produce 100 units of good X which requires inputs A and B. At the combination...

You produce 100 units of good X which requires inputs A and B. At the combination of inputs used marginal product of input A is 10, marginal product of input B is 20, price of input A is 4, and price of input B is 4. Do you minimize costs? If not, what do you need to do to minimize the cost?

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Answer #1

Answer

No.

Use less of A and more of B inputs

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the costs minimize when the firm produces at MP per dollar is equal and it uses more of higher MP per dollar and so.

MP per dollar =MP/price of input

MP per dollar of input A=10/4=2.5

MP per dollar of input B=20/4=5

so the firm should increase the input B and reduce the input A up to the MP per dollar from both is equal.

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