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   32511篇
  免费   347篇
财政金融   5636篇
工业经济   2099篇
计划管理   5230篇
经济学   7308篇
综合类   614篇
运输经济   133篇
旅游经济   277篇
贸易经济   6772篇
农业经济   732篇
经济概况   3420篇
信息产业经济   45篇
邮电经济   592篇
  2021年   121篇
  2020年   216篇
  2019年   286篇
  2018年   2609篇
  2017年   2331篇
  2016年   1519篇
  2015年   315篇
  2014年   469篇
  2013年   1752篇
  2012年   937篇
  2011年   2377篇
  2010年   2245篇
  2009年   2015篇
  2008年   1953篇
  2007年   2194篇
  2006年   448篇
  2005年   701篇
  2004年   781篇
  2003年   858篇
  2002年   560篇
  2001年   360篇
  2000年   391篇
  1999年   297篇
  1998年   292篇
  1997年   282篇
  1996年   276篇
  1995年   235篇
  1994年   233篇
  1993年   273篇
  1992年   247篇
  1991年   254篇
  1990年   237篇
  1989年   220篇
  1988年   208篇
  1987年   187篇
  1986年   229篇
  1985年   296篇
  1984年   271篇
  1983年   271篇
  1982年   226篇
  1981年   222篇
  1980年   243篇
  1979年   202篇
  1978年   172篇
  1977年   165篇
  1976年   144篇
  1975年   131篇
  1974年   112篇
  1973年   113篇
  1972年   84篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
Background risk can influence the performance of insurance markets that must deal with adverse selection when applicants are risk vulnerable, since they are more averse to bearing the insurable risk as a result of their exposures to background risk. We show that background risk always results in a lower deductible for the incentive constrained contract, and that a broader range of markets attains the stable sequential equilibrium cross-subsidized pair of separating contracts. We conclude that background risk always improves the performance of markets for coverage against (insurable) foreground risks that must deal with adverse selection. We also find, however, that these improvements are never sufficient to offset the cost to insureds of bearing the background risk.  相似文献   
72.
73.
Between 1981 and 1988, the drachma has devalued by 62.5% against the ECU. Until mid-1985 any devaluation of the drachma was followed by a corresponding devaluation of the ‘green drachma‘. After that period, the green rate either remained unchanged or changed by a substantially smaller percentage, resulting in farmers' income loss and consumers' gain. The aim of this paper is to investigate the welfare effects on production/producer, consumption/consumer and budgetary flows from and to FEOGA assuming that an adjustment of the green drachma to its current exchange rate was realized. For this purpose partial analysis methodology is employed. The main findings are that, following a simultaneous adjustment of both rates, the gains to producers and in exchange flows more than make up for the corresponding consumers' losses for all products except beef.  相似文献   
74.
75.
76.
通过对油价波动的历史原因、市场内在因素和人为因素的分析可以看出,石油市场已进入一个新时期,油价将变得更加动荡,而且在波动中呈上升趋势。预计新的平均价位大体为每桶20美元。为此,石油公司应积极研究贸易策略,一方面设法使自身免受损失,另一方面还要寻求从价格波动中赢利。只有准备充分,才能够抗御油价的剧烈波动和周期性变化,进而获得生存与发展。  相似文献   
77.
78.
In mid-January 2003 a severe speculative attack was launched against the exchange rate of the Hungarian forint. The attack was very unusual in the history of foreign exchange speculations, since it was aimed at enforcing the appreciation — and not the depreciation — of the currency targeted. The specific nature of this kind of speculation is closely related to Hungary’s accession to the European Union in general and to EMU in particular. Since the other Central and Eastern European acceding countries face similar problems and challenges, the Hungarian experience may involve some instructive lessons on monetary and economic policy for them too.  相似文献   
79.
80.
While the political benefits of the coming EU enlargement are relatively easy to identify, its economic and financial consequences are less unequivocal. The following article examines the likely costs and benefits of enlargement to both existing and future Members, and in particular how it will affect Germany, one of the few present EU Member States which has direct borders with acceding states. The article expresses the personal opinions of the author.  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