It is in the nature of rebates that, just above the target threshold, the price of each additional purchase can be negative.

基于回扣的本质，只要高于目标门槛，每增加一件商品，价格便不增反减。

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It is in the nature of rebates that, just above the target threshold, the price of each additional purchase can be negative.

返金销售方式的本质就是，超出目标值的部分，每一笔额外的销售其单价可以是负的。

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Serial morphology operations by choosing the proper structure element to confirm threshold value and extract the target are carried out.

通过选择适当的结构元素进行系列形态组合运算，自适应确定阈值，提取目标；

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"The net income target is a threshold to determine tax deductibility and clearly impacts whether we award a bonus or not, " says compensation committee chair Judith Estrin.

FORBES: Incentivizing Michael Eisner