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I consider an economy with two individuals (1 and 2). A, B, and C are three points that belong to the utility possibility fro
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Answer #1

Utility possibility frontier (9,15) 4 5 6 7 8 9 10 114 11 12 13 14

A) yes point D= ( 9,15), lies on UPF.

If UPF is Concave (& it is often Concave only )

Then D will lie inside the UPF

.

B) no point is pareto preferred to C,

Bcoz all combination lie on UPF, moving from one point to another one , will lead in making one agent better off & making other person worse off

So they are pareto- non comparable

.

C) Utilitarian SWF = sum of individual utility

So max sum of individual utility levels

At A, U = U1+U2 = 25

At B, U = 25

At C, U = 20

At D, U = 24

So A & B lies on highest IC

.

D) Rawlsian SWF = Min { U1, U2 }

At A, U = Min( 4,21) = 4

At B , U = 8

At C, U = 6

At D, U = 9, Maximum

so D lies on highest IC

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