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- SW = f(U1,U2, ..., Un)
- Efficiency:
maximize SW = U1 + U2 + ... + Un
- Equity: maximize SW = U1
+ U2 + ... + Un subject to Ui <
U
- Safety:
maximize SW = U1 + U2 + ... + Un
subject to P < P
- Sustainability:
maximize SWt=o = U1 + U2 + ... + Un
subject to SWt=1 <
SW
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