As before, market forces cause production to expand until the seller's direct cost for the last unit sold is exactly the value of that unit to the buyer.

在一个简单的市场模型中，市场的力量将促使生产者扩大生产，直到消费者愿意支付的价格等于生产者的直接生产成本为止。

youdao

Marginal user cost----The user cost of the last unit of resource.

边际使用者成本——使用者最后一单位资源成本。

youdao

Marginal opportunity cost — the additional cost of providing the last unit of good as measured by what is given up.

边际机会成本——提供最后一单元商品的额外成本，慎重的做出放弃什么。

youdao

It also reduced the opening hours of the minor injuries unit at Malton as part of cost-cutting measures last December.

BBC: North Yorkshire GPs set to inherit lower NHS debt

However, a spokesperson for Enron told the BBC that the average price of power per unit sold to the state government in the last year came to five Rupees and the cost will come down further once the Dabhol Power Co becomes a fully gas-based plant.

BBC: India casts doubt on Enron project

The naming of American Express' Gary Chittenden as chief financial officer on Sunday didn't give much in the way of clues as to Citi's future direction, though Crittenden did oversee cost-containment programs at the big card issuer and the spinoff of its Ameriprise Financial unit last year.

FORBES: Weill Springs To Citi's Defense