(a) Suppose we have preferences U(X, Y) = 10X2/3 Y1/3, Create a table and graph/sketch the indifference curve through the bundle X = 30 and Y = 30.< (b) The Marginal Rate of Substitution is MRSxy=-2Y/X. For the bundle (X= 30, Y = 30), calculate and then interpret what the value of the MRS means.< (c) Cobb-Douglas preferences are strictly convex. What does this imply about the MRS as we 100
(a) Suppose we have preferences U(X, Y) = 10X2/3 Y1/3, Create a table and graph/sketch the indifference curve through the bundle X = 30 and Y = 30.< (b) The Marginal Rate of Substitution is MRSxy=-2Y/X. For the bundle (X= 30, Y = 30), calculate and then interpret what the value of the MRS means.< (c) Cobb-Douglas preferences are strictly convex. What does this imply about the MRS as we 100
Chapter3: Preferences And Utility
Section: Chapter Questions
Problem 3.7P
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solve d,e,f please
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
Transcribed Image Text:(a) Suppose we have preferences U(X, Y) = 10X²/³ Y¹/3, Create a table and graph/sketch the
indifference curve through the bundle X = 30 and Y = 30.<
(b) The Marginal Rate of Substitution is MRSxy=-2Y/X. For the bundle (X= 30, Y = 30),
calculate and then interpret what the value of the MRS means.<
(c) Cobb-Douglas preferences are strictly convex. What does this imply about the MRS as we move
along the indifference curve? Explain/discuss (you may want to draw a picture). <
(d) What are the two conditions (equations) that identify the optimum given these preferences and
the consumer's budget constraint? Sketch this in a figure and explain.<
(e)_From (d) we can show that optimal demands are: X=½ M/PX and Y = ½ M/Px. (you do not
have to derive these, just use the equations I have given you.) Calculate optimal demands (X*,
Y*) and utility if Px = 10, Px= 5 and income M = 1200. <
(f)_Suppose Px falls to Px = 8 but Py and M are unchanged (Px = 5 and M = 1200). Calculate the
new optimal demands and utility. Compare to the original optimal choices in (e) and discuss.
(g)_Show that, if M falls to $1034, with Px = 8 and Px = 5, then this has the same utility as the
equilibrium in (e) above. Eg confirm that utility is unchanged but with this new income and
prices.
(h) What do we mean by Compensating Variation (CV)? What is the value of the CV in this
example? Explain.<
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