The author's points of view have great significance to improving safety supervisionlevel of Chinese coal mines, reverse safety situation of coal mines a...
In the optimal supervisionlevel, 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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What about financial supervision and regulation on an international level?