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   12744篇
  免费   288篇
  国内免费   1篇
财政金融   2338篇
工业经济   1089篇
计划管理   2127篇
经济学   2797篇
综合类   181篇
运输经济   93篇
旅游经济   187篇
贸易经济   2151篇
农业经济   655篇
经济概况   1408篇
信息产业经济   1篇
邮电经济   6篇
  2020年   134篇
  2019年   176篇
  2018年   207篇
  2017年   225篇
  2016年   223篇
  2015年   156篇
  2014年   238篇
  2013年   1219篇
  2012年   357篇
  2011年   404篇
  2010年   344篇
  2009年   402篇
  2008年   320篇
  2007年   374篇
  2006年   314篇
  2005年   243篇
  2004年   258篇
  2003年   241篇
  2002年   278篇
  2001年   239篇
  2000年   265篇
  1999年   221篇
  1998年   234篇
  1997年   233篇
  1996年   227篇
  1995年   200篇
  1994年   209篇
  1993年   205篇
  1992年   253篇
  1991年   231篇
  1990年   188篇
  1989年   160篇
  1988年   155篇
  1987年   195篇
  1986年   190篇
  1985年   261篇
  1984年   283篇
  1983年   262篇
  1982年   231篇
  1981年   230篇
  1980年   223篇
  1979年   234篇
  1978年   147篇
  1977年   139篇
  1976年   101篇
  1975年   130篇
  1974年   93篇
  1973年   93篇
  1972年   71篇
  1971年   77篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
回顾1.需求7月份,世界主要经济体跌幅趋缓,显现经济复苏迹象。中国经济更是率先走出低迷,增长提速,第二季度国内生产总值同比增长7.9%。基础设施投资起到了决定性的作用。7月份固定资产投资延续上半年的趋  相似文献   
12.
13.
A survey conducted in Mississippi, Texas, Indiana, and Nebraska elicited producers' preferences for various farm policy changes. This permitted examination of the diversity of preferences that single-state studies have not allowed. Five policy choices, including deficiency payments, loan programs, crop insurance, export programs, and disaster payments were examined. Logit model results predicting producer preferences for each of the five dichotomous policy choices are reported. Explanatory variables based on expected utility theory such as risk aversion, price and yield variability, and price–yield correlation are significant in various models.  相似文献   
14.
This paper focuses on the development of a theoretical scheme describing the transformation of primary incomes into end consumption and savings in the Russian economy. This scheme is basically a system of interrelated tables reflecting the distribution of primary incomes across the institutional sectors and their further reallocation and use. The scheme makes allowances for the specific features of the Russian economy and existing statistics. In terms of methodology, it is coordinated with the interindustry balance in current buyer prices and, from the theoretical standpoint, describes the connection between Quadrant II and Quadrant III of the balance. Therefore, the proposed system of tables is treated in the paper as Quadrant IV of the interindustry balance. The theoretical scheme is used by the authors as a necessary basis for constructing an empirical model of the relationship between value added and end product, which will be published in the next issue of this journal.  相似文献   
15.
This article examines the economic outcome of 2006 and builds a forecast for 2007–2010. The medium-term development risks of the Russian economy are analyzed.  相似文献   
16.
This paper contributes to the productivity literature in developing country agriculture by quantifying the level of efficiency for a sample of peasant farmers from Eastern Paraguay. A stochastic efficiency decomposition methodology is used to derive technical, allocative and economic efficiency measures separately for cotton and cassava. An average economic efficiency of 40.1% for cotton and of 52.3% for cassava is found, which suggests considerable room for productivity gains for the farms in the sample through better use of available resources given the state of technology. Gains in output through productivity growth have become increasingly important to Paraguay as the opportunities to bring additional virgin lands into cultivation have significantly diminished in recent years. No clear strategy to improve farm productivity could be gleaned from an examination of the relationship between efficiency and various socioeconomic variables. One possible explanation for this finding is the existence of a stage of development threshold below which there is no consistent relationship between socioeconomic variables and productivity. If this is the case, then our results suggest that this sample of Paraguayan peasants are yet to reach such a threshold. Hence, improvements in educational and extension services, for example, would be needed to go beyond this threshold. Once this is accomplished, additional productivity gains would be obtained by further investments in human capital and related factors.  相似文献   
17.
18.
Rudy Moenaert, William Souder, Arnoud De Meyer, and Dirk Deschoolmeester report the results of their study of forty technologically innovative Belgian companies to examine the interaction between marketing and R&D. They studied one commercially successful and one commercially unsuccessful technological product innovation project in each participating company and collected data from one marketing and one R&D respondent per project. Communication flows between marketing and R&D are increased under conditions involving formalization of projects, decentralization, positive interfunctional climate, and role flexibility.  相似文献   
19.
As agricultural products move from being economic commodities to quality–differentiated goods, price dispersion within specific markets increases and implicit subsidies from high quality producers to low quality producers are removed. The present paper examines how these distributional effects can influence patterns of support and opposition to changes in marketing arrangements. The simple model developed is calibrated using data from the USA slaughter cattle market. Estimates of the impact on prices of measuring quality more accurately are found to be similar in size to previous estimates of market power price suppression in the market.  相似文献   
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