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本文对R&D模型的研究进展进行了梳理,认为研究与开发活动对经济长期增长具有重要的作用,但研究与开发活动也可能对经济增长产生负外部效应。因此,政府既要加大研究与开发投资,以推动企业的技术创新,促进经济快速增长,又要高度重视国民的社会福利最大化。
This paper reviews the research progress of R & D model and argues that research and development activities play an important role in long-term economic growth, but research and development activities may also have negative external effects on economic growth. Therefore, the government should not only increase investment in research and development to promote technological innovation in enterprises and promote rapid economic growth, but also attach great importance to maximizing the social welfare of the people.