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   30164篇
  免费   270篇
财政金融   5250篇
工业经济   1711篇
计划管理   4586篇
经济学   6783篇
综合类   972篇
运输经济   84篇
旅游经济   202篇
贸易经济   6272篇
农业经济   657篇
经济概况   3292篇
信息产业经济   45篇
邮电经济   580篇
  2020年   143篇
  2019年   202篇
  2018年   2557篇
  2017年   2337篇
  2016年   1477篇
  2015年   257篇
  2014年   359篇
  2013年   1423篇
  2012年   765篇
  2011年   2374篇
  2010年   2148篇
  2009年   1833篇
  2008年   1884篇
  2007年   2185篇
  2006年   297篇
  2005年   613篇
  2004年   735篇
  2003年   856篇
  2002年   521篇
  2001年   338篇
  2000年   361篇
  1999年   238篇
  1998年   267篇
  1997年   261篇
  1996年   240篇
  1995年   224篇
  1994年   232篇
  1993年   278篇
  1992年   253篇
  1991年   235篇
  1990年   219篇
  1989年   176篇
  1988年   168篇
  1987年   155篇
  1986年   185篇
  1985年   232篇
  1984年   291篇
  1983年   242篇
  1982年   234篇
  1981年   261篇
  1980年   229篇
  1979年   234篇
  1978年   195篇
  1977年   186篇
  1976年   163篇
  1975年   135篇
  1974年   136篇
  1973年   121篇
  1972年   81篇
  1969年   66篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
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   
2.
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   
3.
4.
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   
5.
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.
10.
Without guaranteed compensation, granted by the German Renewable Energy Sources Act (Erneuerbare Energien Gesetz/EEG), biogas plants compete with all other plant types on the market for electrical energy. However, exchange-based electricity products do not currently permit an economically viable operation of biogas plants owing to their cost situation.  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