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Pareto Efficiency and Optimality
This page is messed up.
 While there is a relationship between Pareto Optimality and Pareto Efficiency,
 they are different results.  I use Pareto optimality in my consulting, see also
Wiederhold, Gio: ""What is Your Software Worth?""; Communications of the ACM, Vol.49 No.9, Sept.2006, p.65-75.
Some statements under P. Efficiency belong under optimality, as most of the first paragraph.  
Pareto Optimality deserves its own page. But now it redirects, and I don't know how to change that.
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