衡量生产要素贡献大小与收益多少，可借助于社会财富的价值形式和边际分析的方法。
When measuring the contribution and value of production factors, the value pattern and marginal analytical method of social wealth is employed.
知识资本是知识经济时代企业内生性生产要素，其边际收益递增的区间明显扩大。
Knowledge capital is one of originally inherented productive factors of a firm in knowledge economy era, and firm marginal profit space has been extended obviously with increasing knowledge capital.
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