The margin income and margin cost of technology element are zero;

高科技企业科技要素投入的边际递增性和边际成本趋于零；

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The model has 3 parts: margin cost of generation transmission cost and transmission constraints cost.

此实时电价模型包括三部分：边际发电费用、网络运行费用和网络约束费用。

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In this paper I get the profit be maximum, as the revenue function, cost function are continuous differential and the margin revenue equals margin cost, that marginal profit equals zero.

当收入函数、成本函数为连续可微函数，边际收入等于边际成本，即边际利润等于零时，利润最大；但在离散情况下，上述结论不一定成立，并给出反例。

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At the margin, I'm reaping, I'm bearing the cost for the extra unit of effort I contribute, but I'm only reaping half of the induced profits of the firm, because of profit sharing.

从边际角度分析,我承担了多付出的全部边际成本,但我却只能得到一半的边际收益,因为利润是均分的

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So, the only hit to the margin is the cost to produce the goods themselves.

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Generic drugs help drugstore profitability because they provide a wider margin between the cost for the pharmacy to purchase the drugs and the reimbursement received.

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Identified by the quantitative model employed by the Forbes Growth Investor, this small-cap company has adopted the latter strategy, but it has also supplemented this with smart acquisitions designed to enhance its product offerings and accelerate the pace of margin expansion through cost-saving synergies.

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