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   11588篇
  免费   77篇
财政金融   2383篇
工业经济   1094篇
计划管理   2095篇
经济学   2295篇
综合类   99篇
运输经济   137篇
旅游经济   213篇
贸易经济   1858篇
农业经济   620篇
经济概况   866篇
邮电经济   5篇
  2024年   56篇
  2023年   68篇
  2021年   97篇
  2020年   197篇
  2019年   266篇
  2018年   275篇
  2017年   280篇
  2016年   283篇
  2015年   215篇
  2014年   318篇
  2013年   1305篇
  2012年   370篇
  2011年   404篇
  2010年   357篇
  2009年   445篇
  2008年   434篇
  2007年   375篇
  2006年   388篇
  2005年   339篇
  2004年   322篇
  2003年   344篇
  2002年   305篇
  2001年   267篇
  2000年   268篇
  1999年   238篇
  1998年   222篇
  1997年   230篇
  1996年   187篇
  1995年   191篇
  1994年   173篇
  1993年   165篇
  1992年   158篇
  1991年   147篇
  1990年   139篇
  1989年   117篇
  1988年   100篇
  1987年   107篇
  1986年   83篇
  1985年   134篇
  1984年   161篇
  1983年   146篇
  1982年   128篇
  1981年   99篇
  1980年   108篇
  1979年   93篇
  1978年   81篇
  1977年   76篇
  1976年   73篇
  1974年   57篇
  1973年   53篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
121.
This article reports on a study of the impact of risk on farm management practices in northern Syria, focusing particularly on how these are affected by risk aversion and farm size. The study is based on production data from an eight-year field trial and on prices from market surveys. A large linear programming model is built, representing the eight years as observations from a discrete probability distribution. Risk aversion is modelled by inclusion of a utility function with constant relative risk aversion, represented using the DEMP/UEP approach.  相似文献   
122.
Following an introduction explaining the genesis of the paper, section 2 briefly reviews some relevant literature and concepts. On the basis of this review, section 3 develops an outline evolutionary model of policy development. Section 4 interprets the history and present status of the EU policy within this framework (here illustrated by the cereals policy which is taken as archetypal for the CAP as a whole). It characterises the policy history In broad evolutionary terms, emphasising the 'fitness for purpose' of various manifestations of the policy organism. The key conclusion from this section is that the present policy situation cannot be described as 'fit' — there is too much conflict between the present (rather new) policy environment and the character of the existing policy. This conclusion is in distinct contrast to more conventional views about the status of the present policy and to the current view from within the policy-making bureaucracy. Section 5 develops some major implications of this analysis for future development of the CAP. Section 6 offers some broad conclusions.  相似文献   
123.
This paper investigates interactions between exporting and productivity at the firm level, using a panel of firms in the UK chemical industry. This is both highly technology intensive and the UK’s largest exporting sector. We find exporters are more productive than non-exporters, but are also on average smaller. This superior productivity performance among exporters appears to be caused by both self-selection and learning-by-exporting effects. In contrast to other studies, we find learning effects are significantly positive among new entrants, weaker for more experienced exporters and negative for established exporters. JEL no. F14, D21, L65  相似文献   
124.
125.
Wool is the only Australian commodity for which there has been an attempt to organise price stability through a buffer stock scheme (1970–91). Growers pressed for the introduction of a scheme since the early 1920s. We test the veracity of claims that the sale of the stockpiles optimised growers' returns. We also simulate the likely outcomes of the reserve price schemes (RPS) proposed in 1925 and 1952, respectively. Our findings are that post-war stockpile disposals did not optimise wool growers' incomes, the undercapitalised proposed RPS of the 1920s would have collapsed in the depression, and that the post-1952 RPS would have been in considerable difficulty.  相似文献   
126.
127.
Evaluating the effect of soft business support upon small firm performance   总被引:2,自引:0,他引:2  
The paper applies robust econometric techniques to assess theimpact of publicly-provided subsidised ‘soft’ businesssupport on the performance of small and medium-sized enterprises(SMEs). It considers the assistance for consultancy advice providedtowards marketing under the UK Enterprise Initiative, lookingat its effect on sales turnover, employment and survival, andmaking explicit allowance for selection effects. It is foundthat the policy has no impact on the survival of smaller SMEs,and that it is most effective in the mid-range SMEs, where itraises survival rates by about 4% over the longer run and growthrates in surviving firms by up to 10% per annum. Overall, thescheme has a substantial impact, but the paper draws attentionto the possible displacement effects.  相似文献   
128.
The responses in New Zealand to the opportunities of refrigeration transformed farming in the Dominion during the half-century from 1890. Closer settlement and the extension of the cultivated area combined with more intensive farming methods to increase land productivity and real gross domestic product capita to the extent that living standards in New Zealand measured by the Human Development Index ranked first in the world by 1913. In contrast, real wages in the Dominion stagnated. The refrigeration-related trade boom had powerful income distribution effects that increased sharply the land rental–wage ratio during the years to 1920. Widely diffuse land ownership in New Zealand tempered the rise in income inequality, to set the Dominion apart from other land-abundant economies of the periphery.  相似文献   
129.
130.
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