Is public R%D a complement or substitute for private R%D : a review of the econometric evidence
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| 其他作者: | , |
| 格式: | 图书 |
| 语言: | 英语 |
| 出版: |
Cambridge
National Bureau of Economic Research
1999.
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| 丛编: | NBER working paper series
no.7373 |
| 主题: |