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   18510篇
  免费   859篇
  国内免费   57篇
财政金融   1689篇
工业经济   1014篇
计划管理   5084篇
经济学   3121篇
综合类   2828篇
运输经济   85篇
旅游经济   94篇
贸易经济   2017篇
农业经济   993篇
经济概况   2501篇
  2025年   82篇
  2024年   227篇
  2023年   283篇
  2022年   274篇
  2021年   424篇
  2020年   559篇
  2019年   472篇
  2018年   365篇
  2017年   440篇
  2016年   530篇
  2015年   573篇
  2014年   1249篇
  2013年   1442篇
  2012年   1543篇
  2011年   1886篇
  2010年   1476篇
  2009年   1115篇
  2008年   1293篇
  2007年   1183篇
  2006年   1082篇
  2005年   909篇
  2004年   617篇
  2003年   416篇
  2002年   306篇
  2001年   247篇
  2000年   161篇
  1999年   83篇
  1998年   42篇
  1997年   37篇
  1996年   26篇
  1995年   15篇
  1994年   8篇
  1993年   13篇
  1992年   7篇
  1991年   5篇
  1990年   3篇
  1988年   1篇
  1987年   3篇
  1986年   1篇
  1985年   6篇
  1984年   3篇
  1983年   7篇
  1982年   10篇
  1981年   2篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Abstract:   The relationship between past net asset value returns and the current discount on investment trusts is investigated. The relationship is weaker for the component that is common to all trusts in the same sector, and is significantly stronger for more liquid trusts. The time lag before returns have their full impact on discounts is consistent with the requirements of distinguishing 'skill' from noise. Although discounts vary widely even within the same sector, the range of variation appears to be consistent with an arbitrage equilibrium, in which the profits of exploiting apparent pricing anomalies are just insufficient to invite arbitrage trades.  相似文献   
2.
Replacement investment is essentially a regenerative optimal stopping problem; that is, the key decision concerns when to terminate the life of existing plant – and hence when to start over again. This paper examines this optimisation problem within a continuous time framework and studies the qualitative and quantitative impact of uncertainty on the timing of new investment (and the criteria that should be used for terminating the life of existing plant).  相似文献   
3.
This paper applies principles of transition to land tenure and squatting in South Africa. Political transition in South Africa reassigned political property rights, which produced contestable, and rent‐seeking incentives for squatting as a means to privatize land and redistribute wealth. Government failure to establish and protect private property rights in a squatter camp resulted in common‐pool problems that resisted private and public resolution with consequent rent dissipation and social loss. In response to this retreat from duty, informal agents emerged to claim their own share of the prize. Without enforceable rules of capture, the growth of squatter camps in South Africa will continue. JEL classification: D7, H8, K1, K4, R1, R4.  相似文献   
4.
This study presents important international evidence by examining the wealth effect of domestic joint ventures by Taiwanese firms. In opposite to United States evidence, we find that announcements of domestic joint ventures by Taiwanese firms are, on average, associated with significantly negative abnormal stock returns. We also find that the stock market response to announced domestic joint ventures is significantly positively related to the announcing firms' investment opportunities, size of investment and debt ratio, and is significantly negatively related to the business relatedness variable. In contrast, free cash flow, firm size, relative firm size and managerial ownership are found to have no significant power in explaining the market response. Our results support the investment opportunities, synergy and complementarity hypotheses as well as a broad interpretation of the free cash flow hypothesis, but reject the absolute size, relative size and alignment-of-interests hypotheses. This study makes valuable contributions to the literature by providing the first direct evidence on the role of investment opportunities, synergy and alignment-of-interests in explaining the wealth effect of domestic joint ventures  相似文献   
5.
A sample of firms where employee stock options and other long‐term incentives are absent but an annual bonus is required is examined. A positive relation is found between firm equity value and stock bonus but not cash bonus. The positive relation is stronger when the firm has greater investment opportunities. Additionally, the relation is shown to be nonlinear in the sense that the marginal effect of stock bonus on equity value is positive but decreasing (negative) when the stock bonus is below (above) the breakpoint. Overall, the annual stock bonus is valued positively by investors even though it is linked to the firm's contemporaneous but not future performance.  相似文献   
6.
7.
Summary. We prove existence of a competitive equilibrium in a version of a Ramsey (one sector) model in which agents are heterogeneous and gross investment is constrained to be non negative. We do so by converting the infinite-dimensional fixed point problem stated in terms of prices and commodities into a finite-dimensional Negishi problem involving individual weights in a social value function. This method allows us to obtain detailed results concerning the properties of competitive equilibria. Because of the simplicity of the techniques utilized our approach is amenable to be adapted by practitioners in analogous problems often studied in macroeconomics. Received: September 13, 2001; revised version: December 9, 2002 RID="*" ID="*" We are grateful to Tapan Mitra for pointing out errors as well as making very valuable suggestions. Thanks are due to Raouf Boucekkine and Jorge Duran for additional helpful discussions. We also thank an anonymous referee for his/her helpful comments. The second author acknowledges the financial support of the Belgian Ministry of Scientific Research (Grant ARC 99/04-235 “Growth and incentive design”) and of the Belgian Federal Goverment (Grant PAI P5/10, “Equilibrium theory and optimization for public policy and industry regulation”). Correspondence to: C. Le Van  相似文献   
8.
当前,我国政府绩效管理中存在的问题,主要是政府绩效管理缺乏统一的政策指导和制度保障,对政府缋效管理的理论研究与实践发展滞后,社会参与机制不完善,激励制度匮乏等。我国应通过立法来推进政府绩效管理的制度化和规范化;学习和借鉴西方先进思想,加强政府绩效管理的理论研究,建立有效的绩效评估指标体系和完善的激励制度。从而提高我国政府效能。增强政府管理能力。  相似文献   
9.
The purpose of this article is to identify the extent of inward and outward foreign direct investment (FDI) worldwide. A large number of countries were aggregated on a regional basis to examine their inward and outward stocks as a percentage of gross fixed capital formation for the period 1980–2006. Among the findings was that the annual increase for both inward and outward FDI was less than 1%. Also, countries grouped by the aggregates developed, Africa, Latin America and Caribbean, Asia and Oceania, and developing were found to differ significantly in their means.  相似文献   
10.
There are major differences between ex ante corporate investment plans and ex post investments. The case of China is useful for understanding this problem because there is substantial time series and cross sectional variation in the ratio of utilized to contracted FDI (UC ratio), which is less than one in most province-year observations. Provinces may believe that they are rewarded for reporting higher levels of contracted FDI, which would lead to lower UC ratios and higher policy incentives in subsequent years. Alternatively, provinces may be rewarded for reporting data more accurately, which would lead to higher UC ratios and policy incentives in subsequent years. Empirical analysis supports the second, institutional theory and suggests that provinces may increase their rate of utilizing pledged FDI by strengthening their legal systems and reducing government bureaucracy.  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