首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 359 毫秒
1.
2.
26则     
  相似文献   

3.
This paper considers the relation of education and of scientific and technical knowledge developed through R&D to labor productivity growth within the medium term. It is unique in using a total capital approach that includes both private and public physical, human, and knowledge capital formation and in use of a medium term model for determining productivity growth that includes both demand side and supply side effects. Empirical results for the U.S. and 14 other major OECD nations for 5-yr time periods from 1955 through 1980 find education as measured both by the average educational attainment of the labor force and by the percentage of advanced level graduates who bring technology to bear on production to be significant determinants of productivity growth. Gross investment in physical capital also transmits the R&D and has a positive influence, as do higher utilization rates and the technology transfer associated with lower initial productivity levels.  相似文献   

4.
5.
6.
26个英文字母在中学物理中扮演着重要角色,许多物理知识就凝缩在这小小的字母里面,你知道这些字母通常所表示的物理含义吗?  相似文献   

7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号