Please check and correct my answers.
Please check and correct my answers. Thank you.
1) Jack Benny can get blood from a stone. If he has x stones, the number of pints of blood he can extract from them is f(x) = 2x^(1/3). Stones cost Jack w dollars each. Jack can sell each pint of blood for p dollars.
a) How many stones does Jack need to extract y pints of blood?
b) What is the cost of extracting y pints of blood?
c) What is Jacks supply function when stones cost w each? When stones cost $8 each?
d) If Jack has 19 relatives who can also get blood from a stone in the same way, what is the aggregate supply function for blood, Y, when stones cost w dollars each?
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my answers:
1)
a)
y^3/8
b)
(w)(y^3/8)
c)
S(p,w) = (8p/3w)^(1/2)
S(p) = (p/3)^(1/2)
d)
Y = 20(8p/3w)^(1/2)
2) Earls production function is f(x1, x2) = x1^(1/2) * x2^(1/3), where x1 is the number of pounds of lemons he uses and x2 is the number of hours he spends squeezing them. His cost function is c(w1, w2, y) = 2w1^(1/2) * w2^(1/2) * y^(3/2), where w1 is the cost per pound, w2 is the wage rate, and y is the number of units of lemonade produced.
a) If lemons cost $1 per pound, the wage rate is $1 per hour, and the price of lemonade is p, find Earls marginal cost function and his supply function. If lemons cost $4 per pound and the wage rate is $9 per hour, what will be his supply function be?
b) In general, Earls marginal cost depends on the price of lemons and the wage rate. At prices w1 for lemons and w2 for labour, what is his marginal cost when he is producing y units of lemonade? The amount that Earl will supply depends on the three variables, p, w1, w2. As a function of these three variables, what is Earls supply?
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my answers:
2)
a)
MC(y) = 3y^(1/2)
S(p) = p^2/3
S(p) = p^2/18
b)
MC(w1, w2, y) = 3w1^(1/2) * w2^(1/2) * y^(1/2)
S (p, w1, w2) = p^2 / (3 w1 * w2)
I first looked at your first question, and then I look at your answers. There seems to be a dis-connect. Your answers dont seem to match the questions. Here are my answers
a) y=f(x)=2x^(1/3)
b) The cost of producing y is equal to the number of number of stones needed times w. x= (y/2)^3….
So C(y) = w*(y/2)^3
c) The supply function is equal to the marginal cost function. So MC(y) = 3*w*(y/2)^2 d) I need to think a bit about converting the MC curve into a supply function as y=f(w)
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Originally posted 2019-05-24 13:04:32.
