The best argument for efficiency is its cost—or, more precisely, its profitability.

提高效率的最佳理由是它的成本——或者更准确地说，是它的盈利能力。

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Version 2.0 of the application can be extended to track these processes, their efficiency, cost, and associated carbon footprint.

这个应用程序的2.0版本经过扩展可以跟踪这些流程、它们的效率、成本和相关的碳轨迹。

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Schneider Electric's new EEM technology unites business and energy strategies by giving managers a powerful dashboard for understanding the true drivers behind efficiency, cost and reliability.

施耐德电气的新eem技术通过向管理者提供一个强大的仪表板以了解效率、成本和可靠性背后真正的推动者，从而统一了业务和能源战略。

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The efficiency cost of a tax hike depends most on its permanent effect on people's incomes.

ECONOMIST: How much do high-income people respond to tax changes?

Or, if you think that the marginal utility of taxpayer income and the efficiency cost of taxing are both very low, consider the opportunity cost of government spending.

FORBES: Paternalism and Welfare

And while there was an unexpected surge in cost-efficiency in Arizona compared to 2010, there was an equally unexpected drop-off in cost-efficiency in Minnesota.

FORBES: The Most and Least Efficient MLB Teams of 2011