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   1835篇
  免费   30篇
财政金融   209篇
工业经济   53篇
计划管理   258篇
经济学   689篇
综合类   165篇
运输经济   11篇
旅游经济   48篇
贸易经济   208篇
农业经济   48篇
经济概况   176篇
  2024年   2篇
  2023年   19篇
  2022年   54篇
  2021年   71篇
  2020年   73篇
  2019年   76篇
  2018年   62篇
  2017年   71篇
  2016年   88篇
  2015年   51篇
  2014年   78篇
  2013年   125篇
  2012年   107篇
  2011年   185篇
  2010年   138篇
  2009年   167篇
  2008年   96篇
  2007年   91篇
  2006年   74篇
  2005年   60篇
  2004年   29篇
  2003年   27篇
  2002年   10篇
  2001年   15篇
  2000年   11篇
  1999年   14篇
  1998年   7篇
  1997年   3篇
  1996年   3篇
  1995年   1篇
  1994年   1篇
  1993年   1篇
  1992年   3篇
  1991年   2篇
  1990年   1篇
  1988年   3篇
  1987年   2篇
  1985年   2篇
  1984年   21篇
  1983年   9篇
  1982年   4篇
  1980年   2篇
  1979年   3篇
  1978年   1篇
  1977年   2篇
排序方式: 共有1865条查询结果,搜索用时 15 毫秒
1.
This paper explores the existence of stable research teams, when the preferences of each agent depend on the set of researchers who are collaborating. We introduce a property over researchers’ preferences, called top responsiveness, guaranteeing the existence of stable research teams configurations. We also provide a stable mechanism, induced by the so-called top covering algorithm, which is strategy-proof when researchers preferences satisfy top responsiveness. Furthermore, we find that, in this framework, the top covering mechanism is the only strategy-proof mechanism that always selects stable allocations.  相似文献   
2.
We provide evidence on the impact of tax incentives and financial constraints on corporate R&D expenditure decisions. We contribute to extant research by comparing R&D expenditures in the United States and Canada, thereby exploiting the differences in the two countries' R&D tax credit mechanisms and generally accepted accounting principles. The two tax incentive mechanism designs are consistent with differing views of the degree of financial constraints faced by firms in these economies. Our sample also allows us to explore the effects of capitalizing R&D on Canadian firms. Employing a matched design, we document relations between tax credit incentives and R&D spending consistent with both Canadian and U.S. public companies responding as though they are not financially constrained. We estimate that the Canadian credit system induces, on average, $1.30 of additional R&D spending per dollar of taxes forgone while the U.S. system induces, on average, $2.96 of additional spending. We also find that firms that capitalize R&D costs in Canada spend, on average, 18 percent more on R&D. Collectively, this evidence is important to the ongoing debates in both countries concerning the appropriate design of incentives for R&D and is consistent with the assumptions found in the U.S. tax credit system, but not those found in the Canadian system.  相似文献   
3.
4.
Definitions and progress of ecosystem health and ecological security   总被引:2,自引:0,他引:2  
1. Introduction Development of human industrial civilization and predatory exploitation of natural resources have in- duced tremendous changes of ecological environment. In recent years, territorial and global environmental problems have increased, such as greenhouse effect, depletion of ozone, global warming, water scarcity, water pollution, acid rain, decrease of biodiversity, soil erosion desertification etc. These changes seriously intimidate the health and security of ecosystems, and dist…  相似文献   
5.
消费和谐论:面向科学发展观的消费理论   总被引:13,自引:0,他引:13  
文章从消费系统均衡的角度出发,运用一般均衡原理研究了消费系统实现均衡的和谐机制,探讨了消费者在和谐机制运行中的主导地位,进而分析了消费和谐论与科学发展观的有机统一。最后指出以人为本、协调发展、提高消费在GDP中的比重对于科学发展观和消费和谐论的重要性。  相似文献   
6.
Journal rankings are important for a variety of reasons, most importantly as the basis of academic tenure and promotion decisions. A common approach in other fields is the citations methodology which is used in this study to determine the relative importance of various operations management (OM) journals. The citations analysis noted the frequency that all other journals are cited in Decision Sciences, Journal of Operations Management, and Management Science during the period 1992 to 1994. Rankings are provided based on total citations, citations per article, and citations per words published. The study shows that the journals with the most importance to OM research are Management Science, Decisions Sciences and Operations Research. Other journals important to OM research are the Harvard Business Review, Journal of Operations Management, and IIE Transactions.  相似文献   
7.
Tourism resources valuation is now a hot issue of the science of tourism resources, resources economics and environmental economics. This paper reviews research progresss on tourism resources valuation, introduces its theoretic basis, and elaborates two classical valuation methods: TCM and CVM. And two existing problems are discussed Firstly, tourism resources value constitution system is still under dispute. This paper puts forward the Value constitution system based on present value categories. Secondly, tourism resources valuation methods need further studies because both TCM and CVM have deficiencies. Finally, the paper points out the development direction of tourism resources valuation.  相似文献   
8.
用科学发展观指导城市土地整理   总被引:3,自引:0,他引:3  
用科学发展观指导城市土地整理工作,处理好城市发展与城市用地总量与结构平衡、生态环境保护的关系,统筹人与自然的和谐发展。为此,要建立健全城市土地整理市场准入机制,完善城市土地整理市场规则,实行政企分开、政事分开,体现市场经济公开、公平、有序、竞争原则,以实现城市土地整理区的社会经济协调发展。  相似文献   
9.
A technology assessment (TA) program was launched in Switzerland in 1991. One project in the series of pilot projects was meant to assess the impact of so-called LESIT technologies on energy consumption. (LESIT was a priority research program and a German acronym for power electronics, systems and information technology.) In this paper the institutional environment, applied methods and main results of the TA study are summarised. One of the questions that arose was whether it is reasonable to expect a high-tech engineering research program to serve any societal goals other than the more immediate technical and economic goals the research partners in university and industry are accustomed to follow. It was found that without special efforts this expectation was not realistic. Politically desirable goals are best served when enough emphasis, time, and money are given to the process of bringing together research partners from academia and industry who all have a (self-serving) interest in furthering the politically desirable goal and then support their collaboration.  相似文献   
10.
专业课教学如何体现“以人为本”,这是会计教学面临的新课题。近年来,我们实行了给予学生选择教师权利的挂牌教学法促进学生个性发展的教学科研化方法,创新探索了学生自我评价及自发的经验学习等方法进行了创新与探索,取得了显著成效。本文对此进行介绍,对其对会计教学改革提供参考。  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