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   134543篇
  免费   3833篇
  国内免费   1篇
财政金融   25355篇
工业经济   11507篇
计划管理   21406篇
经济学   28772篇
综合类   1442篇
运输经济   960篇
旅游经济   2482篇
贸易经济   23306篇
农业经济   6050篇
经济概况   16803篇
信息产业经济   7篇
邮电经济   287篇
  2021年   825篇
  2020年   1607篇
  2019年   2369篇
  2018年   2282篇
  2017年   2467篇
  2016年   2657篇
  2015年   2081篇
  2014年   3385篇
  2013年   15232篇
  2012年   4154篇
  2011年   4084篇
  2010年   3641篇
  2009年   4282篇
  2008年   3827篇
  2007年   3174篇
  2006年   3537篇
  2005年   3539篇
  2004年   3078篇
  2003年   2856篇
  2002年   2830篇
  2001年   2600篇
  2000年   2516篇
  1999年   2434篇
  1998年   2266篇
  1997年   2321篇
  1996年   2174篇
  1995年   1972篇
  1994年   1997篇
  1993年   1960篇
  1992年   2017篇
  1991年   1902篇
  1990年   1805篇
  1989年   1667篇
  1988年   1606篇
  1987年   1605篇
  1986年   1682篇
  1985年   2432篇
  1984年   2312篇
  1983年   2102篇
  1982年   1964篇
  1981年   1910篇
  1980年   1869篇
  1979年   1804篇
  1978年   1623篇
  1977年   1626篇
  1976年   1376篇
  1975年   1264篇
  1974年   1184篇
  1973年   1185篇
  1972年   898篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
In this paper, we seek to empirically assess which determinants of the capability and incentives of banks to screen and monitor firms are significant in explaining credit rationing to Italian SMEs. After testing for the presence of non‐random selection bias and the potential endogeneity of some determinants of interest, the probit model results we obtain suggest that the average banking size and the multiple banking relationship phenomenon are statistically significant factors affecting credit rationing, presumably through their impact on the aforementioned banks' capability and incentives. Other potential determinants of banks' incentives to monitor and screen, such as local banking competition and firm' capacity to collateralize, are never significant. However, when we split the sample according to the level of competition in credit markets, we find that the estimated marginal effects of all significant determinants of interest are larger in absolute value than those obtained when using the whole sample.  相似文献   
982.
We examine investment behavior among exchange-listed Korean manufacturing firms before and after the 1997 financial crisis using firm-level panel data. Starting with the standard Q-theory of investment, we augment it by allowing for a sales accelerator and the possibility of cash constraints, categorizing firms based on their age, size and affiliation to an industrial conglomerate (i.e., chaebol). We find that Tobin’s Q is a robust determinant of investment in a pooled sample for 1992–2001, but that it became more important for small firms and less important for chaebol-affiliated firms after the crisis. Investment by chaebol firms also became more sensitive to the availability of internal cash balances after the crisis. We interpret this as reflecting a shift in the Korean economy to a stronger market orientation after the crisis and to a business climate in which the quality of potential projects became more important relative to capital market imperfections in determining the destination of investment funds.  相似文献   
983.
Network neutrality and the nature of competition between network operators   总被引:2,自引:0,他引:2  
The neutral architecture of the Internet is being challenged by various parties, such as network operators providing the connections to end-users, who are interested in gaining control of the information exchanged over the Internet. What are the effects on competition and welfare of such practices? Currently, there exists very little economic theory on network neutrality. This paper provides a preliminary analysis of the type of economic modeling that can address network neutrality, as well as of the type of results that can be expected.  相似文献   
984.
985.
This paper presents an expert assessment of the present state of cooperation of Ukraine and Russia in the innovation sphere, outlines its main stages and analyzes the quality of the process of formation of legislative framework in state regulation of innovation-oriented transformations in the economy of the two countries. A comparative study is made and a quantitative estimate of the level of innovation activities in industrial production and the degree of innovation shifts in the technological structure of manufacturing in Russia and Ukraine is given.  相似文献   
986.
This paper examines the efficiency of commercial banks in Namibia using the standard econometric frontier approach. Although two aspects of efficiency (scale and scope) receive our attention, the emphasis is on the latter which pertains to whether a firm produces as efficiently as it possibly can, given its size. Our results indicate that substantial economies of scale exist in commercial banking in Namibia. This will tend to suggest that commercial banks in Namibia can increase their efficiency by increasing their current scale of operation. The results for scope economies show that the current level of input combination does not make for maximum efficiency as sufficient scope exists for a more efficient combination of inputs. We believe this will reduce operating costs in the industry and stimulate efficiency.  相似文献   
987.
988.
Financial flows between center and region are analyzed on the example of the Republic of Buryatia. Significant changes are shown to have occurred in the interbudgetary relations between the federal center and the region, which are associated with a revised delineation of authorities between different levels of authority. It has been the key factor in changing the sources and volumes of financial flows. The analysis is largely focused on the relations between the region and its municipalities.  相似文献   
989.
The paper considers procedural aspects of land potential estimation when forming tourist and recreation territories allotted for tourist and recreation zones.  相似文献   
990.
The general design for the real-time electricity market presented in this paper optimizes and prices both real and reactive power simultaneously in an AC setting, where all assets—generation, load and transmission—are allowed to bid and are financially settled at the locational price times energy consumed or produced. The result is that transmission lines are compensated for both capacity and admittance, providing incentives for efficient operation of transmission-related assets such as FACTS devices, if price-taking behavior is assumed. Losses are incorporated into the design and become an operating cost for transmission. The market design is shown to be revenue neutral and, under some assumptions, nonconfiscatory.   相似文献   
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