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   17539篇
  免费   493篇
财政金融   3440篇
工业经济   1207篇
计划管理   2845篇
经济学   4010篇
综合类   178篇
运输经济   160篇
旅游经济   269篇
贸易经济   3127篇
农业经济   716篇
经济概况   2059篇
信息产业经济   2篇
邮电经济   19篇
  2023年   147篇
  2021年   152篇
  2020年   300篇
  2019年   361篇
  2018年   554篇
  2017年   631篇
  2016年   551篇
  2015年   338篇
  2014年   484篇
  2013年   2211篇
  2012年   570篇
  2011年   617篇
  2010年   601篇
  2009年   588篇
  2008年   511篇
  2007年   437篇
  2006年   394篇
  2005年   346篇
  2004年   312篇
  2003年   334篇
  2002年   311篇
  2001年   302篇
  2000年   315篇
  1999年   308篇
  1998年   324篇
  1997年   279篇
  1996年   237篇
  1995年   227篇
  1994年   247篇
  1993年   250篇
  1992年   275篇
  1991年   260篇
  1990年   208篇
  1989年   193篇
  1988年   169篇
  1987年   166篇
  1986年   171篇
  1985年   253篇
  1984年   271篇
  1983年   252篇
  1982年   227篇
  1981年   202篇
  1980年   174篇
  1979年   170篇
  1978年   159篇
  1977年   134篇
  1976年   127篇
  1975年   142篇
  1974年   106篇
  1973年   102篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
I examine the effect of reform on telecom performance using a second-generation regulatory framework index and panel data techniques to test how regulatory governance affected sector performance in 22 Latin American countries during the period 1980–1997. Sound regulatory governance in telecommunications has a positive impact on network expansion and efficiency, in both the static and dynamic specifications. Openness of markets to competition and divestment of former state-owned telco operators also contributed positively to better sector performance. The dynamic specification shows that past performance has its own strong effect on present (and perhaps future) performance.  相似文献   
2.
Previous work shows that establishments with higher proportions of women are more likely to use piece rates but that individual women are less likely to receive performance pay. We present a model in which lower expected tenure and labor force attachment are positively associated with piece rates but are negatively associated with other forms of performance pay. Analysis of the National Longitudinal Survey of Youth (NLSY) confirms that women are more likely to be paid piece rates and simultaneously less likely to be paid commissions and bonuses.  相似文献   
3.
本文介绍了网络预算管理是如何有效地克服传统预算方法的缺点,通过有效的控制去解决企业预算管理工作中的实际问题,指出了该预算方法能大大提高工作效率和管理效率。  相似文献   
4.
The performance of service industries in Canada has been lower than that of good industries over the last four decades, with noticeable exceptions such as for railways and telecommunication carriers. Service industries were less economically (and technically) efficient in that they generated less output value (quantity) per hour worked (level and growth) or per combined unit of labour and capital (multifactor productivity growth) than good industries. The relative output price of services declined slightly over time compared with goods. At the disaggregated level, changing relative output prices were substantial and proved to be an important factor explaining the relative satisfactory economic performance of many service industries despite their low technical performance. Nevertheless, the output share of service industries increased over that period, sustained, mainly, by the growing recourse of all firms to outsourcing of services.  相似文献   
5.
In this paper we will analyze the relationship between the value and duration moments of a cash flow and movements in the yield curve. We will show that for changes in the yield curve which can be related to tn , the 1st order changes in the net present value of a cash flow are linearly dependent on the n + lth duration moments, and that the 2nd order changes are dependent on the sum of duration moments of order 2 n + 1 and 2 n + 2. We will use this relationship to tilt tracking portfolios so as to protect them against specific changes in the yield curve.  相似文献   
6.
7.
8.
9.
The current progress of electrification in Russia is clearly insufficient compared with G8 countries. At the same time, economy sectors have a high potential for energy saving. The electricity consumption of households depends on their cash income and the growth rate of electricity tariffs.  相似文献   
10.
The purpose of this paper is to analyze the impact of the Bank of Japan's official interventions on the JPY/USD parity during the period 1992–2004. The novelty of our approach is to combine two recent advances of the empirical literature on foreign exchange interventions: (i) drawing on over-the-counter option prices to characterize more precisely the distribution of market expectations; (ii) redefining interventions in terms of events as they tend to come in clusters. Moreover, in order to deal with the features of the data (small sample size, non-standard distribution), we use bootstrap tests.We show that interventions have a significant impact on the mean expectation (the forward rate). The results are more ambiguous for variance. Additionally, we find that the effect of interventions on skewness is significant, robust to different definitions of skewness, and consistent with the direction of interventions. On the contrary, our results clearly show that kurtosis is not affected by interventions. We finally show that: (i) coordination increases effectiveness of interventions; (ii) results are not altered when controlling for other economic and political news.  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