Exam 1 2007

# Exam 1 2007 - AAE 320 Spring 2007 Exam#1 Name 1(15 pts You...

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AAE 320 Spring 2007 Exam #1 Name: _____________________________ 1) (15 pts.) You manage a berry farm and hire laborers. The table below reports how many pints of berries are picked, cleaned, and ready for sale in an hour with different numbers of laborers. Laborers Hired Pints of Berries Marginal Product Value of Marginal Product 3 50 -- -- 5 70 7 84 9 94 a) Using numbers given in this table, show below how to calculate the Marginal Product for one example, and then fill in the Marginal Product column in the table above. b) Berries sell for \$2.00/pint. Using numbers from this table, show below how to calculate the Value of Marginal Product for one example, and then fill in the Value of Marginal Product column in the table above. c) What optimality condition defines the profit maximizing amount of the input to use? (Be brief and to the point.) d) If wages, taxes, liability insurance, etc. cost \$12/hour to hire a laborer, what is the profit maximizing number of laborers to hire? (You may need to interpolate between entries.)

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2) (15 pts.) Soybean yield as a function of potassium fertilizer is Y = 30 + 0.6K – 0.01K 2 , where yield Y is bu/ac and the potassium rate K is lbs/ac. The price of soybeans is \$8.00/bu and the price of potassium \$0.20/lb. a)
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Exam 1 2007 - AAE 320 Spring 2007 Exam#1 Name 1(15 pts You...

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