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   18064篇
  免费   764篇
  国内免费   332篇
财政金融   2068篇
工业经济   797篇
计划管理   2040篇
经济学   5186篇
综合类   2561篇
运输经济   111篇
旅游经济   240篇
贸易经济   2837篇
农业经济   718篇
经济概况   2601篇
信息产业经济   1篇
  2024年   31篇
  2023年   257篇
  2022年   193篇
  2021年   365篇
  2020年   577篇
  2019年   523篇
  2018年   466篇
  2017年   602篇
  2016年   597篇
  2015年   650篇
  2014年   1111篇
  2013年   1666篇
  2012年   1468篇
  2011年   1630篇
  2010年   1266篇
  2009年   1213篇
  2008年   1410篇
  2007年   1228篇
  2006年   1080篇
  2005年   784篇
  2004年   514篇
  2003年   371篇
  2002年   263篇
  2001年   210篇
  2000年   179篇
  1999年   127篇
  1998年   89篇
  1997年   78篇
  1996年   64篇
  1995年   39篇
  1994年   23篇
  1993年   19篇
  1992年   18篇
  1991年   11篇
  1990年   4篇
  1989年   5篇
  1988年   2篇
  1986年   1篇
  1985年   7篇
  1984年   5篇
  1983年   7篇
  1982年   3篇
  1981年   4篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
Relative Guarantees   总被引:1,自引:0,他引:1  
Many real-world financial contracts have some sort of minimum rate of return guarantee included. One class of these guarantees is so-called relative guarantees, i.e., guarantees where the minimum guaranteed rate of return is given as a function of the stochastic return on a reference portfolio. These guarantees are the topic of this paper. We analyse a wide range of different functional specifications for the minimum guaranteed rate of return, hereunder both so-called maturity and multi-period guarantees. Several closed form solutions are presented.  相似文献   
42.
This paper uses the binary choice model to identify the factors that are significantly influencing the household purchase decisions of seafood products for home consumption in Auckland, New Zealand. It is found that ‘quality’ and ‘cooking easiness’ are the main product attributes that significantly influence households’ choices of seafood in Auckland. Also, the representative household has shown a strong preference for fresh and other alternative seafood products, including processed, smoked and canned, over frozen products. Retail outlets are found to be more attractive to the household purchasing seafood for home consumption. The New Zealand seafood industry may find this baseline study useful as a guide to developing future research structure on the domestic market.  相似文献   
43.
44.
Recent studies examining the relationship between stock returns and exchange rate changes have provided evidence that the exchange rate exposure of non-financial companies is reduced by the use of foreign exchange derivatives. Building on such research, this study investigates whether past ineffective derivative hedging contributes to explaining future derivatives use. To the extent that companies monitor the effectiveness of their currency risk management practices, past ineffective hedgers can be expected to modify their future use of foreign exchange derivatives accordingly. In our study of 94 non-financial US multinationals, we provide evidence that the change in derivatives use from 1996–1998 to 1998–2000 can be explained in part by the ineffective hedging of currency risk in 1996–1998, controlling for variables associated with theories of optimal hedging. Additional analyses confirm that such primary results are robust to firm size, the level of foreign operations, and the use of derivatives to partially hedge currency risk. Our results imply that as exchange markets and risk management practices change, the use of derivatives to manage exchange rate risk also changes. Our contribution to this field of study is that we find evidence that past ineffective hedgers tend to increase their future use of FXDs.  相似文献   
45.
We consider the effect on the degree of exchange rate pass‐through of the exchange rate regime in operation. We test the hypothesis that pass‐through will be lower under a float as firms may be reluctant to pass appreciations or depreciations on to their customers when there is a strong chance that they will be subsequently reversed. Taylor’s hypothesis that pass‐through will be lower in a low‐inflation environment is also considered. Both hypotheses are assessed in relation to the price of manufactured imports into New Zealand and we find that, whereas the shift to a float dramatically lowered the degree of pass‐through, the later shift to a low‐inflation regime has no significant additional effect on the pass‐through relationship.  相似文献   
46.
A dynamic general equilibrium business cycle model is constructed with staggered price adjustment, monopolistic wage setting and distortionary taxation. The government purchases goods, runs an unemployment benefit system and balances its budget through a proportional tax on labour income. A temporary tax‐financed increase in government expenditures can lower the tax rate through a demand‐induced widening of the tax base. It is shown analytically that this allows private consumption to rise, under realistic conditions, despite the negative wealth effect of increased fiscal spending.  相似文献   
47.
电子政务是中国信息化战略的重中之重,但其实际发展与预期间存在着明显差距。本文以中国“以电子政务拉动信息产业发展”政策为研究重点,把这一政策放在中国信息化历史中加以考察,分析中国信息化新阶段ICT市场的新变化和新挑战,针对电子政务实践与预期间的差距,对该政策提出我们的看法。  相似文献   
48.
精馏过程的节能,对于减少能源消耗,降低生产成本和保护环境具有十分重要的意义.在精馏过程中可以采用最适宜回流比操作和最佳进料状态,使用中间冷凝器和中间再沸器,高效精馏、热泵精馏.合理安排多组分物料分离流程,直接利用过程热量及开发应用高效换热器等措施.本文从最佳回流比R的选择、进料温度及进料状态的确定等方面,详细的分析了在精馏塔的设计过程中,如何实现设计的优化问题,以实现节能降耗.  相似文献   
49.
从1994年税制改革以来,个人所得税对于促进对外经济技术交流与合作,缓解社会分配不公的矛盾,增加财政收入等都发挥了积极作用。但是随着形式的发展,也暴露出不少问题和矛盾。  相似文献   
50.
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