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English definition of “Pareto optimal”

Pareto optimal

adjective
 
 
ECONOMICS, WORKPLACE, PRODUCTION
using or dividing resources (= time, money, employees, etc.) in a way that results in a situation where nobody is doing worse than before, and at least one person is doing better: If the operation is not yet Pareto optimal, this is because people who are powerful in the inefficient system are reluctant to change.
(Definition of Pareto optimal from the Cambridge Business English Dictionary © Cambridge University Press)
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