In a zero transaction cost world, bargaining strength does not affect the efficiency of outcomes;

在一个零交易费用的世界，谈判力量并不影响结果的有效性；

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The World Health Organization reports that depression has the greatest burden of disease worldwide, in terms of the total cost of treatment and the loss of productivity.

世界卫生组织报告称，从治疗总费用和生产力损失来看，抑郁症是世界上产生的负担最重的疾病。

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For more than thirty years, the Aprovecho Research Center has been designing cleaner, low-cost cooking stoves for the developing world.

VOA: special.2010.02.01

The recently announced World Alzheimer Report places a shocking financial cost on care linked to dementia, or loss of mental abilities.

VOA: special.2010.10.05

Bikes for the World collects bicycles and delivers them at low cost to community programs in developing countries.

VOA: special.2009.11.16

My own calculations indicate that it will cost the world about one trillion dollars each year.

BBC: We need to turn carbon into gold

Across Asia, restrictions on the export of rice have helped increase its cost on world markets by about 75%.

ECONOMIST: Export restrictions

"The cost of world commodities, including sugar and wheat, rose even more quickly, inevitably working through to some shop prices, " he added.

BBC: UK retail sales 'sluggish' despite slight April rise