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1.投入无形化是美国新经济产生的首要前提。知识经济在美国的兴起和迅速发展促进了投入要素的转变,由以自然资源为主的有形要素逐步转向以知识、智力和技能为主的无形要素。投入无形化一方面消除了有形要素必然导致的“边际效益递减”和“规模报酬递减”对经济持续
1. Intangible investment is the primary precondition for the new economy in the United States. The rise and rapid development of knowledge-based economy in the United States has promoted the transformation of input elements. The transition from the tangible elements of natural resources to the intangible elements of knowledge, intelligence and skills. On the one hand, investment in intangibles eliminated the “diminishing marginal benefit” and “diminishing returns to scale” that the tangible factors inevitably caused to the economy