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   43753篇
  免费   771篇
财政金融   7466篇
工业经济   2773篇
计划管理   7215篇
经济学   10148篇
综合类   721篇
运输经济   204篇
旅游经济   405篇
贸易经济   9038篇
农业经济   1348篇
经济概况   4487篇
信息产业经济   47篇
邮电经济   672篇
  2023年   142篇
  2021年   203篇
  2020年   366篇
  2019年   559篇
  2018年   2859篇
  2017年   2660篇
  2016年   1896篇
  2015年   552篇
  2014年   805篇
  2013年   3007篇
  2012年   1417篇
  2011年   2881篇
  2010年   2593篇
  2009年   2418篇
  2008年   2320篇
  2007年   2579篇
  2006年   820篇
  2005年   1018篇
  2004年   1049篇
  2003年   1179篇
  2002年   788篇
  2001年   671篇
  2000年   592篇
  1999年   506篇
  1998年   577篇
  1997年   505篇
  1996年   509篇
  1995年   432篇
  1994年   442篇
  1993年   412篇
  1992年   433篇
  1991年   434篇
  1990年   400篇
  1989年   313篇
  1988年   312篇
  1987年   306篇
  1986年   318篇
  1985年   426篇
  1984年   418篇
  1983年   380篇
  1982年   357篇
  1981年   327篇
  1980年   328篇
  1979年   313篇
  1978年   261篇
  1977年   213篇
  1976年   211篇
  1975年   188篇
  1974年   164篇
  1973年   165篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
This paper examines the pattern of settlements, investor wins and state wins in investor-state dispute settlement cases, focusing on the impact of arbitration rules, the resources and experience of the litigants, the type of treaty breach under investigation, and the pattern of state intervention. Logistic regression results show that settlements are more likely when investors do not disclose their allegations publicly, when the host state has been involved in a greater number of past cases, and when the respondent state has a higher control-of-corruption rating. Panel awards to investors are more likely in cases of alleged direct expropriation and less likely for indirect expropriation. Panel decisions favoring the state increase with higher per capita income and rule-of-law ratings.  相似文献   
3.
In this paper we explore the micro-level determinants of conformity. Members of the social networking service Facebook express positive support to content on the website by clicking a Like button. We set up a natural field experiment to test whether users are more prone to support content if someone else has done so before. To find out to what extent conformity depends on group size and social ties we use three different treatment conditions: (1) one stranger has Liked the content, (2) three strangers have Liked the content, and (3) a friend has Liked the content. The results show that one Like from a single stranger had no impact. However, increasing the size of the influencing group doubled the probability that subjects expressed positive support. Friendship ties were also decisive. People were, on average, four times more likely to press the Like button if a friend, rather than a stranger, had done so before them. The existence of threshold effects in our experiment clearly shows that both group size and social proximity matters when opinions are shaped.  相似文献   
4.
5.
Cuba sought economic independence from the U.S. and its reliance on sugar exports after its 1959 revolution, but subsequently developed new dependency relationships. In the meantime, Cuba remained inside the General Agreement on Tariffs and Trade (GATT), despite conducting most of its trade outside it. This paper explores the political economy of Cuba’s participation in the GATT and later the World Trade Organization (WTO). Documents show that Cuba sought to use its participation to gain new markets and influence in the developing world. While Cuba has gained little economically from its participation, in recent years it has diversified its exports and trade partners, and its trade interests now align more closely with WTO rules. Economic reforms will be necessary in order for Cuba to benefit.  相似文献   
6.
7.
This paper presents an approach to assessing the efficacy of public spending on research and development in state programs. At present, there is a need to develop a unified approach to the analysis and evaluation of the efficacy of such spending from the perspective of participants in state programs (federal executive bodies). The proposed approach does not allow evaluating the efficacy of public spending on the development of research areas assigned to the authors.  相似文献   
8.
We study the exploitation of a common groundwater resource, first as a static and then as a differential game, in order to take into account the strategic and dynamic interactions among the users of the resource. We suppose that firms can form coalitions or can decide not to cooperate. The non-cooperation regime is characterized by pumping that lead to depletion of the aquifer; the cooperation preserves the resource. Open-loop and feedback equilibria have been computed and compared in order to characterize the existence of cooperators and defectors in water resources management.  相似文献   
9.
We extend the entrepreneurship literature to include positive psychological capital — an individual or organization's level of psychological resources consisting of hope, optimism, resilience, and confidence — as a salient signal in crowdfunding. We draw from the costless signaling literature to argue that positive psychological capital language usage enhances crowdfunding performance. We examine 1726 crowdfunding campaigns from Kickstarter, finding that entrepreneurs conveying positive psychological capital experience superior fundraising performance. Human capital moderates this relationship while social capital does not, suggesting that costly signals may, at times, enhance the influence of costless signals. Post hoc analyses suggest findings generalize across crowdfunding types, but not to IPOs.  相似文献   
10.
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