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   13045篇
  免费   374篇
  国内免费   3篇
财政金融   2291篇
工业经济   917篇
计划管理   2394篇
经济学   2744篇
综合类   248篇
运输经济   69篇
旅游经济   175篇
贸易经济   2605篇
农业经济   447篇
经济概况   1364篇
信息产业经济   1篇
邮电经济   167篇
  2021年   85篇
  2020年   160篇
  2019年   194篇
  2018年   355篇
  2017年   382篇
  2016年   370篇
  2015年   251篇
  2014年   336篇
  2013年   1259篇
  2012年   486篇
  2011年   423篇
  2010年   412篇
  2009年   430篇
  2008年   414篇
  2007年   353篇
  2006年   321篇
  2005年   313篇
  2004年   252篇
  2003年   260篇
  2002年   235篇
  2001年   270篇
  2000年   256篇
  1999年   211篇
  1998年   202篇
  1997年   228篇
  1996年   207篇
  1995年   204篇
  1994年   182篇
  1993年   199篇
  1992年   218篇
  1991年   201篇
  1990年   175篇
  1989年   172篇
  1988年   140篇
  1987年   146篇
  1986年   148篇
  1985年   206篇
  1984年   183篇
  1983年   193篇
  1982年   158篇
  1981年   187篇
  1980年   155篇
  1979年   170篇
  1978年   150篇
  1977年   134篇
  1976年   147篇
  1975年   124篇
  1974年   118篇
  1973年   100篇
  1972年   81篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
This paper analyzes countertrade as a special case of a customs union in which the countertrade agreement gives rise (as in customs union theory) to both trade-creating and trade-diverting effects. The net effects on welfare are ambiguous. A detailed case study from Egypt and brief examples from other countries illustrate the relevance of this interpretation .  相似文献   
73.
The maritime industry provides an interesting case study of the design and implementation of drug-testing programs in the transportation industry during the 1980s. It is clear that such programs were designed and implemented less because of empirical evidence of safety problems than for political reasons. The results in the maritime industry are indicative of a program that is expensive to operate, intrusive with regard to employee privacy, and which will have little or no impact on safety. Focusing such programs on the issue of impairment rather than on the issue of drug usage per se is likely to improve the outcome of the programs. Although, despite common belief, there is little evidence that drug usage or the “drug problem” in U.S. society as a whole had gotten worse in the preceding years (Schonsheck, 1989, 250–251).  相似文献   
74.
The idea of judo economics, building on analogies with the sport of judo, has been around for at least 20 years. But taking these ideas further to judo strategy means that a framework of strategic principles can be developed to help companies put stronger opponents on the mat.  相似文献   
75.
76.
77.
Agricultural policy reform has been an important source of change in the Chinese agricultural sector. The reforms led to productivity growth and helped China to pursue its self-sufficiency goal especially in the grain sector. In order to analyze whether observable productivity growth stems from technologically induced components or from the market induced parts, a multi-input–multi-output model is derived by using an econometric distance function framework. A decomposition allows to distinguish allocative effects, scale effects, technological change, and technical efficiency change. Data on farms in Zhejiang from 1986 to 2000 are used to analyze the impact of policy reform.  相似文献   
78.
79.
Recent approaches to sustainable development leave much room for policies at a local level. In fact, it is becoming evident that targets such as increasing resource productivity, preserving natural cycles, or extending the present level of welfare, are best pursued within the confines of a local area. In particular, environmental changes are best brought about by considering local systems of firms as cornerstones of cooperative strategies and using data on materials and energy use in physical terms. In this paper, an enterprise input–output model is developed for an industrial district, i.e. a local group of firms specialized in the production of a single final output. The model allows for a detailed quantitative analysis of materials and energy flows and the consequent generation of waste and pollution. As a planning tool, the model may be used to evaluate alternative scenarios, such as the possibility of re- using waste taking account of sustainability requirements. An empirical case study applies the model to an industrial district in Southern Italy producing leather sofas.  相似文献   
80.
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