In 1957, American economists found out that between 1909 and 1949, in the growth rates among the non-agricultural sector, skills contributed 87.5 per cent towards growth, while labor and capital contributed a mere 12.5 per cent.

 
  • 到了1957年,美国经济学家发现,从1909年到1949年,在美国非农业部门生产力的增长中,技术的因素占了87.;5%25,而劳动和资本的贡献仅占12
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