In the optimal supervision level, when contractor's marginal productivity is high and marginal cost is low, it is easier to supervise and the marginal revenue of supervision is high.

在最优监督水平下，作业公司的边际生产率越高，边际成本越低，越容易监督，监督带来的边际收益越高。

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The level of supervision of these professionals and the level of their responsibility to supervise and train others increases over time but does not dramatically change overnight until promotion to partner.

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The level of supervision needed to root out all the mediocre will also stultify the brilliant.

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This would require a complete shift of banking regulation and supervision to the European level and the creation of a European bank resolution mechanism.

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