Farming is productive labor.

耕作是有生产价值的劳动。

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The substance of value is the expense of human productive labor.

价值的实体是劳动，是人类劳动力的生产耗费。

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Productive labor theory is irrelevant to national economic accounting theory.

生产劳动理论与国民经济核算理论无关；

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Adding a few hundred million Chinese and Indians to the world's productive labor force after 1980 slowed the rise in income for workers all over the developed world.

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There is a huge qualitative difference between an economy built on natural resource extraction, where the populace is a cost center, and an economy built on productive labor by the population, where increasing capabilities of the society leads to more wealth.

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"With planning and the right investments in people now ... our world of 7 billion can have thriving, sustainable cities, productive labor forces that can fuel economic growth, youth populations that contribute to the well-being of economies and societies, and a generation of older people who are healthy and actively engaged in the social and economic affairs of their communities, " UNFPA, the United Nations Population Fund, said in a new report.

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