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   48757篇
  免费   1492篇
  国内免费   676篇
财政金融   3610篇
工业经济   2296篇
计划管理   12079篇
经济学   7827篇
综合类   7759篇
运输经济   431篇
旅游经济   792篇
贸易经济   6037篇
农业经济   3623篇
经济概况   6471篇
  2024年   152篇
  2023年   578篇
  2022年   832篇
  2021年   1435篇
  2020年   1653篇
  2019年   938篇
  2018年   813篇
  2017年   902篇
  2016年   1084篇
  2015年   1332篇
  2014年   3581篇
  2013年   3919篇
  2012年   4255篇
  2011年   5234篇
  2010年   3900篇
  2009年   3255篇
  2008年   3334篇
  2007年   2751篇
  2006年   2657篇
  2005年   2000篇
  2004年   1444篇
  2003年   1196篇
  2002年   868篇
  2001年   854篇
  2000年   581篇
  1999年   337篇
  1998年   161篇
  1997年   136篇
  1996年   123篇
  1995年   87篇
  1994年   67篇
  1993年   60篇
  1992年   53篇
  1991年   46篇
  1990年   28篇
  1989年   18篇
  1988年   23篇
  1987年   4篇
  1986年   3篇
  1985年   40篇
  1984年   62篇
  1983年   45篇
  1982年   35篇
  1981年   14篇
  1980年   14篇
  1979年   12篇
  1978年   2篇
  1977年   6篇
  1973年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
One of the main issues with the concept of ecosystem services is its absence on the ground in concrete operational decision-making contexts; that is, an implementation gap. In this study, we investigated if this gap could be overcome through the use of open-source data and free tools, and the adoption of a short-term participatory process. We tested these methods in the context of a project in the urban metropolitan area of Bordeaux (Communauté urbaine de Bordeaux: CUB) in France. The ecosystem services were defined using a participatory approach involving local stakeholders, and then selected scenarios were simulated to test the impact of various development or conservation plans. The study addressed three main questions: (1) Is it possible to adopt a simple methodological approach that overcomes the implementation gap through the development of a user-friendly and inclusive method? (2) What is the added value of a participatory approach? (3) With regards to four scenarios in this territory, what are the ES trends in the selected biophysical and monetary indicators, and will knowledge of these trends help planners to shape a sustainable trajectory for the territory?  相似文献   
992.
The number of Muslim literates in Islamic finance and conventional finance, particularly Islamic insurance, has grown tremendously, so has the number of academic and professional articles, books, and other monographs published in Islamic insurance profession. Despite Islamic insurance uniqueness based on Islamic values and philosophies, its emancipation aimed to compete or eradicate the conventional insurance at both academic and professional levels. Those monographs that were intended to replace their conventional insurance counterpart have triggered endless debates among stakeholders on their authenticity and quality of knowledge and as well challenged their authors' authorities. Therefore, with content analysis, this survey verified whether the Islamic insurance literatures were capable of producing well-seasoned professionals of lslamic insurance. The results showed that the disputes over the available literatures might have contributed to the failure of having a standard curriculum for teaching Islamic insurance as a profession in academic at national and international levels. Review of the literatures and curriculum was recommended.  相似文献   
993.
How do international investors react to announcements of cross-border mergers and acquisitions (CM&As) by emerging market multinational enterprises (EMNEs)? Using a unique and manually-constructed firm-level dataset, this paper examines the stock price reactions to CM&A announcements made over the period 1991–2010 by Chinese MNEs listed on the Hong Kong Stock Exchange and the wealth impacts of their corporate governance. Our empirical findings confirm a positive stock price reaction on average, and suggest that international investors react positively to the presence of large shareholders, but negatively to the presence of institutional shareholders. There is a negative impact if the largest shareholder is either the State or the corporate founder. We suggest that this is because the international investors perceive potential principal–principal conflicts in such ownership/control constellations and discount equity prices accordingly. We also find that Board size and independence have positive effects on the price reaction, but that large supervisory boards engender negative reactions.  相似文献   
994.
“平等”概念进入教育领域后,为我们解决了一些困扰已久的师生关系问题。但这种看似民主的师生平等观点,是否也夹杂着整个社会的权威退化值得探讨。在权威普遍丧失的今天,教育领域中万万不能丧失权威的概念,师生平等并不是师生关系最高标准,它甚至有弱化教师权威的倾向。如何建立起师生关系的最佳模式,如何帮助教师重塑在学生心目中应有的权威地位,阿伦特的权威观念也许可以作为一个指引。  相似文献   
995.
反腐倡廉环境下创新国有企业领导人员经济责任审计内容是一项新的课题。本文对探索创新国有企业领导人员经济责任审计内容的必要性和我国法律规定的国有企业领导人员经济责任审计内容进行了综述,并根据审计实践,提出了“探索开展国有企业绩效审计”等5项审计内容,对创新国有企业领导人员经济责任审计内容进行了探讨,并针对目前创新国有企业领导人员经济责任审计内容面临的困难提出了健全绩效审计法律法规和评价指标、完善企业增资扩股行为的法律法规、加强对基层审计人员的培训学习等3条对策。  相似文献   
996.
Applying fixed-effects panel data, this study investigates the impact of U.S. dollar exchange rate movements during different exchange rate states (overvaluation and undervaluation) on the monthly real gross and real net purchases of foreign equities by U.S. residents over the post-Plaza Accord period. The foreign equities come from 22 developed and 25 developing countries. Previous research has posited two alternative hypotheses regarding the relationship between exchange rates and foreign investment. These are the wealth effect and the profit-oriented effect. The evidence herein suggests that these two hypotheses coexist. We find robust evidence for a negative relationship between the exchange rate movements of an undervalued U.S. dollar and the demand for foreign equities. For developed countries, the wealth effect dominates the profit-oriented effect when the U.S. dollar is overvalued, while, for developing countries, the profit-oriented effect dominates the wealth effect. The results emphasize the importance of considering exchange rate states derived from a relative PPP equilibrium when analyzing U.S. allocations to foreign equities. The findings with respect to the macroeconomic control variables are mainly in agreement with the predictions of international financial theory. Some of the results, however, disappear or become inconclusive for the period after the bankruptcy of Lehman Brothers. This may be explained by the increased uncertainty in international financial markets following this unprecedented event. The findings are robust with respect to different constructed equilibrium exchange rates.  相似文献   
997.
This study investigates the challenges that professional Jordanian tourist guides may encounter. The implication of this research stems from the fact that very little research, at least in Jordan, has addressed the problems that tourist guides encounter. Qualitative methods, using participants’ observations and in-depth interviewing methods, were used to generate insights from the collected data. The results reveal multiple critical challenges that impact the professional stability of tourist guides. Further efforts are required to fully understand the needs of tourist guides.  相似文献   
998.
当前,大众创业、万众创新已是时代最强音,论文通过对俄罗斯政府推进中小企业发展相关做法的得失进行评析,提出河北发展民营经济的路径和方法,力求为河北省民营企业高质量发展提供有益借鉴。  相似文献   
999.
成本管理是每一个企业管治的关键环节,是提升企业效益的重中之重,看重企业成本管治才可以让企业在激烈的市场竞争中具有优势。煤矿企业是国民经济的关键组成部分,对我国能源领域有极大的影响。基于此,论文就煤矿企业成本管理存在的问题和对策进行了探讨。  相似文献   
1000.
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