Pareto efficiency - A Tool for perfectionists

....the distribution patterns of the of Italy's national wealth made Pareto the discovery that approximately 80 percent of a's national wealth to about 20 percent of the population of Italy accounted for. 80 percent of the population held the remaining 20 percent of the's national wealth.
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banks should primarily this 20 % of people care and a lot of their orders would be backed up.
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This leads to the Pareto principle. It States that many tasks with a funding of about 20 % so you can do that up to 80 % of all problems will be solved
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scope
The Pareto principle applies to many processes in Economics, Ecology and sociology. More generally, it States, that, with a little Input (time, resources, effort) is a large part of the available Outputs (success, money, reward, time savings, etc) can be realized.
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Practical application
1. you can Define whether the task "the perfect solution". Keep in mind that the perfect solution is often not possible, because the circumstances anyway to permanently change.
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2. Mnimieren the effort by itself already after a relatively short time, satisfied with the result. It needs courage! But be flexible, if necessary, intervene in and, where appropriate, nachzukorrigieren.