另一个通用的预警信号是，系统中的变动速度慢下来。
Another universal warning sign is when fluctuations in the system slow down.
人员变动速度的加快更使得这些行业将创造出许多额外的空缺职位。
A high rate of worker turnover in these occupations will create many additional openings.
结果表明，参与人对产量的调整速度越小或单位变动成本越大，其利润就越稳定。
Numerical results show that the player's profits become more stable if the speed of adjustment decreases or variable cost per unit increases.
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