Question
Version:0.9 StartHTML:0000000105 EndHTML:0000007730 StartFragment:0000000141 EndFragment:0000007690 1. Consider the following utility functions: (i) (, ) = (ii) (, ) = + (iii) (, ) = +
Version:0.9 StartHTML:0000000105 EndHTML:0000007730 StartFragment:0000000141 EndFragment:0000007690
1. Consider the following utility functions:
(i)
(, ) =
(ii)
(, ) = +
(iii) (, ) = +
(iv) (, ) = min{, } (that is, (4,3) = 3, (1,1) = 1, (2,3) = 2, ..)
For each case:
(a) Sketch an indifference curve for (, ) = (1,1) and another one for (4,2).
(b) Derive a formula for the MRS for each of the first 3 examples and use it to
calculate the MRS at (1,1). (In the last example (iv), calculus cannot be used.
However, think about the concept of MRS as how much y you are willing to give
up for a bit more of x as represented by the steepness of the indifference curve at a
point. Can you find some value for MRS in this case?)
(c) Calculate the MRS at the points (1,1) and (4,2).
(d) Which of the examples exhibit diminishing MRS?
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