首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   4878篇
  免费   145篇
财政金融   551篇
工业经济   259篇
计划管理   829篇
经济学   886篇
综合类   34篇
运输经济   35篇
旅游经济   69篇
贸易经济   725篇
农业经济   228篇
经济概况   1407篇
  2023年   39篇
  2022年   24篇
  2021年   41篇
  2020年   77篇
  2019年   121篇
  2018年   140篇
  2017年   142篇
  2016年   111篇
  2015年   102篇
  2014年   162篇
  2013年   406篇
  2012年   199篇
  2011年   243篇
  2010年   163篇
  2009年   173篇
  2008年   192篇
  2007年   155篇
  2006年   134篇
  2005年   106篇
  2004年   126篇
  2003年   132篇
  2002年   109篇
  2001年   81篇
  2000年   83篇
  1999年   68篇
  1998年   62篇
  1997年   65篇
  1996年   60篇
  1995年   46篇
  1994年   31篇
  1993年   50篇
  1992年   52篇
  1991年   45篇
  1990年   53篇
  1989年   46篇
  1988年   39篇
  1987年   30篇
  1986年   35篇
  1985年   58篇
  1984年   51篇
  1983年   34篇
  1982年   36篇
  1981年   29篇
  1980年   22篇
  1979年   12篇
  1978年   18篇
  1977年   26篇
  1976年   17篇
  1932年   12篇
  1890年   17篇
排序方式: 共有5023条查询结果,搜索用时 15 毫秒
21.
This paper discusses the impact of a redistribution of current income from the White to the Black population on the distribution of sectoral output, and total employment by means of a semi‐closed input‐output model.

The results show that a redistribution of current income towards Black households — which no doubt will have positive social and political repercussions — has a non‐negative effect on GDP and a definite positive effect on the performance of sectors with a high private consumption expenditure component, as well as on total employment.  相似文献   

22.
Different viewpoints were expressed at the 1990 annual national conference of the South African Society for Agricultural Extension regarding the role of extension in the development of the farmer as entrepreneur. It is expected that public funding will increasingly be limited to functions of general public interest. To achieve independence farmers should be willing to expose themselves to entrepreneur development stimuli. it is in the public interest to develop scarce human, economic and natural resources. Research findings indicate distinct behavioral differences between entrepreneurs of differing perceptions. A comprehensive interdisciplinary education is recommended for agriculturalists. Because needs change, education programmes must be re‐evaluated from time to time. It serves little purpose to educate people in extension who do not have a technical message to communicate. The state extension service seeks closer cooperation and liaison with agricultural co‐operative and private sector know‐how. Departmental policy will probably be less rigid in future.

A clear distinction should be made between information and extension services. The adoption of an ethical code for extensionists may be opportune. Relevancy is an important contributing factor to extensionist credibility.  相似文献   

23.
Simulated annealing: An introduction   总被引:1,自引:0,他引:1  
  相似文献   
24.
25.
In this paper we revisit the Dutch disease paying particular attention to the role of specific factors of production and capital stock dynamics. The main insight is that if the natural resource rich windfall is substantial but not large enough for the country to become a rentier, capital goods must be produced at home and adjustment to natural resource windfall takes time. It takes time to build this home-grown capital. Specific factors are crucial to explain the dynamic responses of the real exchange rate, capital intensities and wages in response to a natural resource windfall. If a country is small and the windfall is large, it may be able to import capital and migrant labour in which case the Dutch disease can be avoided.  相似文献   
26.
An overall adjustment of global industries is going on and the global resource allocation layout is changing.Developed countries attempt to maintain the existing resource allocation layout while emerging countries such as China and India are getting involved in global resource allocation and are playing an increasingly active role.The reporter from China's Foreign Trade magazine had an interview with relevant offcials,experts and professionals in mining investment on such issues as the current characteristics of international mining market,the situation of international mining market in the year 2012 and the foreign investment direction of Chinese mining,and analyzed the above issues.  相似文献   
27.
28.
Health is one of the crucial problems confronting the development of Third World countries. Community‐based primary health care is the best instrument for mobilising community development.Development through health, however, can only be achieved if primary health care is implemented in a comprehensive approach in which a supportive environment and living conditions are as important as the provision of health care services. The Venda care group organisation, like other village health workers, is involved in primary health care and community development in the communities of the care groups. Such supportive community‐based organisations are able to alleviate health and development problems at the grass roots provided that programmes and activities are based on community participation, self‐reliance and the development of local decision‐making and leadership skills. The degree of success of the Venda care group organisation in achieving these objectives was investigated.  相似文献   
29.
30.
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