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   2678篇
  免费   125篇
  国内免费   28篇
财政金融   551篇
工业经济   133篇
计划管理   458篇
经济学   720篇
综合类   157篇
运输经济   34篇
旅游经济   39篇
贸易经济   367篇
农业经济   171篇
经济概况   201篇
  2024年   7篇
  2023年   57篇
  2022年   22篇
  2021年   41篇
  2020年   94篇
  2019年   96篇
  2018年   101篇
  2017年   110篇
  2016年   118篇
  2015年   85篇
  2014年   168篇
  2013年   382篇
  2012年   140篇
  2011年   200篇
  2010年   132篇
  2009年   136篇
  2008年   196篇
  2007年   151篇
  2006年   114篇
  2005年   91篇
  2004年   59篇
  2003年   58篇
  2002年   38篇
  2001年   45篇
  2000年   40篇
  1999年   29篇
  1998年   22篇
  1997年   16篇
  1996年   21篇
  1995年   16篇
  1994年   10篇
  1993年   8篇
  1992年   8篇
  1991年   3篇
  1990年   2篇
  1989年   2篇
  1988年   2篇
  1986年   1篇
  1984年   2篇
  1983年   5篇
  1982年   2篇
  1979年   1篇
排序方式: 共有2831条查询结果,搜索用时 812 毫秒
71.
This paper provides the results of an econometric analysis of the influences of airline characteristics on the average operating costs per aircraft movement. The analysis combines a comprehensive selection of airline-output variables, airline-fleet variables, and airline-market variables. The results confirm the existence of economies of density, economies of load factor, economies of aircraft utilisation and economies of aircraft size. The paper does not provide evidence of economies of scale, economies of stage length or economies of fleet commonality. Furthermore, airlines that additionally operate full freighters, airlines that are members of a worldwide alliance and airlines that operate a multi-hub system face higher average operating costs per aircraft movement. Surprisingly, the regression results demonstrate that airlines that use newer aircraft have higher average operating costs per aircraft movement, suggesting that ownership costs (depreciation and leasing costs) of new aircraft outweigh the increasing maintenance costs of old aircraft. Finally, the results show that airlines that have a dominant position at their hubs or bases have higher operating costs per aircraft movement, implying that the absence of serious competitive pressure enables airlines to charge higher ticket prices and, with that, leads to a limited focus on cost savings.  相似文献   
72.
文章认为国内出现的大量的"暴力征地"现象是由两个原因造成的:一个是中国土地产权的残缺,尤其是土地使用权和转让权的限制,另一个是交易费用,包括量度费用和信息费用,在此基础上推出的两个含义都得到了事实的验证。  相似文献   
73.
The amount of customisation to an enterprise resource planning (ERP) system has always been a major concern in the context of the implementation. This article focuses on the phase of maintenance and presents an empirical study about the relationship between the amount of customising and the resulting support effort. We establish a structural equation modelling model that explains support effort using customisation effort, organisational characteristics and scope of implementation. The findings using data from an ERP provider show that there is a statistically significant effect: with an increasing amount of customisation, the quantity of telephone calls to support increases, as well as the duration of each call.  相似文献   
74.
《Business Horizons》2016,59(6):645-653
The use of managerial control ratios for benchmarking IT costs is widely accepted. This installment of Accounting Matters informs CIOs about IT managerial control ratios and the assumptions underlying the use of these ratios in IT cost benchmarking. Incorrect use of these ratios and violation of the assumptions can lead to faulty inferences and costly mistakes. This article proposes a technique for benchmarking IT costs to draw the right conclusions from the data.  相似文献   
75.
In this paper, we examine how the value of failed bank assets differs between two types of FDIC resolution methods: liquidation and private-sector reorganization. Our findings show that private-sector reorganizations do not deliver the expected cost-savings from 1986 to 1991, a period of industry distress. On a univariate basis, the net loss on assets is lower for a private-sector reorganization than for a liquidation in both a period of industry distress and of industry health. However, institutions with higher quality assets and higher franchise values are more likely to be resolved using a private-sector resolution. Once we control for this selection bias, we find that institutions that are resolved during periods of industry distress result in higher resolution costs than liquidation. During periods of industry health, private-sector resolutions are less costly than liquidations. We show that if a bank that failed during the post-crisis period instead failed during the crisis period, its net loss as a percent of assets would have been 3.232 percentage points higher. Given that the average net loss on assets ratio is 21.42 percent during our sample period from 1986 to 2007, the increase in costs is economically significant.  相似文献   
76.
We test the relationship between market maker competition and stock price efficiency. Using the number of market makers as a proxy for competition, the results show a strong positive correlation between competition and stock price efficiency. Moreover, price efficiency is higher when competing market makers have higher research ability. We suggest that market maker competition increases price efficiency through two channels: 1) Competition decreases transaction costs, and 2) Uninformed market makers learn from orders submitted by informed market makers through competition. The latter happens only in the group of market makers with higher experiences. The results imply that the price efficiency can be improved by enhancing the competition of market makers with high research ability and experiences.  相似文献   
77.
New types of marketplace are now becoming viable. They can slash transaction costs, bring new resources into the economy and expand economic opportunity. These markets can be grown by the private sector. But, to deliver their full potential, they need a change in the mindset of government.  相似文献   
78.
In the presence of both convex and nonconvex capital adjustment costs in a dynamic general equilibrium model, corporate tax policy generates both intensive and extensive margin effects via the channel of marginal Q. Its impact is determined largely by the strength of the extensive margin effect, which, in turn, depends on the cross‐sectional distribution of firms. Depending on the initial distribution of firms, the economy displays asymmetric responses to tax changes. Moreover, an anticipated increase in the future investment tax credit reduces investment and adjustment rate initially.  相似文献   
79.
We consider a firm with no assets in place but an option to invest in a project. The investment is irreversible but delayable in a regime-switching economy. The firm issues equity, straight bonds (SBs) and contingent convertibles (CoCos). We provide the closed-form prices for the firm׳s securities and the pricing and timing of the option. Our numerical analyses discover that issuing CoCos instead of SBs induces much less agency cost of debt. The agency cost is higher in a boom economy than in recession but the difference is small. There is a unique CoCos׳ conversion ratio such that the agency cost arrives at the minimum value zero. The inefficiencies arising from asset substitution and debt overhang are much more significant in recession than in boom. Only if the conversion ratio is not too small, the two inefficiencies disappear during boom periods. While the effects of the conversion rate on optimal capital structure and firm value and those of supervision and jump intensity on optimal CoCos׳ coupon are ambiguous and weak, the stricter the supervision or the longer the economy remains in recession, the less the option value and the optimal SBs׳ coupon.  相似文献   
80.
In this paper, we examine irreversible investment decisions in duopoly games with a variable economic climate. Integrating timing flexibility, competition, and changes in the economic environment in the form of a cash flow process with regime switching, the problem is formulated as a stopping‐time game under Stackelberg leader‐follower competition, in which both players determine their respective optimal market entry time. By extending the variational inequality approach, we solve for the free boundaries and obtain optimal investment strategies for each player. Despite the lack of regularity in the leader's obstacle and the cash flow regime uncertainty, the regime‐dependent optimal policies for both the leader and the follower are obtained. In addition, we perform comprehensive numerical experiments to demonstrate the properties of solutions and to gain insights into the implications of regime switching.  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