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Trends and patterns in research and development expenditures in the United States
This paper is a review of recent trends in United States expenditures on research and development (R&D). Real expenditures by both the government and the private sector increased rapidly between the mid-1970s and the mid-1980s, and have since leveled off. This is true of both overall expenditure...
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| 主要作者: | |
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| 格式: | Artigo |
| 語言: | Inglês |
| 出版: |
The National Academy of Sciences of the USA
1996
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| 主題: | |
| 在線閱讀: | https://ncbi.nlm.nih.gov/pmc/articles/PMC34119/ https://ncbi.nlm.nih.gov/pubmed/8917476 |
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