A=1-Ye/E(Y)



1. 

=>E(Y)=(Y1+Y2)/2



2.

W(U1(Y1),U2(Y2))=W(U1(Y),U2(Y))

=>Y=Ye




3.

공리주의

 W(U1(Y1),U2(Y2)) = U1(Y1)+U2(Y2)


롤스

W(U1(Y1),U2(Y2)) = MIN(U1(Y1),U2(Y2))


평등주의

W(U1(Y1),U2(Y2)) = U1(Y1)×U2(Y2)