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   10228篇
  免费   234篇
财政金融   1916篇
工业经济   849篇
计划管理   1778篇
经济学   2259篇
综合类   124篇
运输经济   70篇
旅游经济   155篇
贸易经济   1653篇
农业经济   481篇
经济概况   1130篇
信息产业经济   1篇
邮电经济   46篇
  2021年   74篇
  2020年   124篇
  2019年   200篇
  2018年   215篇
  2017年   232篇
  2016年   243篇
  2015年   150篇
  2014年   228篇
  2013年   1018篇
  2012年   315篇
  2011年   348篇
  2010年   305篇
  2009年   347篇
  2008年   303篇
  2007年   281篇
  2006年   258篇
  2005年   212篇
  2004年   204篇
  2003年   205篇
  2002年   239篇
  2001年   212篇
  2000年   244篇
  1999年   202篇
  1998年   208篇
  1997年   204篇
  1996年   214篇
  1995年   164篇
  1994年   159篇
  1993年   176篇
  1992年   177篇
  1991年   181篇
  1990年   176篇
  1989年   128篇
  1988年   116篇
  1987年   122篇
  1986年   136篇
  1985年   194篇
  1984年   146篇
  1983年   135篇
  1982年   111篇
  1981年   135篇
  1980年   116篇
  1979年   126篇
  1978年   125篇
  1977年   74篇
  1976年   87篇
  1975年   65篇
  1974年   61篇
  1973年   70篇
  1972年   61篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
102.
103.
We assemble the announcement and actual introduction dates of electronic trading by the leading exchanges of 120 countries to examine the impact of automation, controlling for risk factors and economic conditions. Dividend growth models and international CAPM suggest a significant decline in the equity premium, especially in emerging markets. Consistent with this reduction in the equity premium in the long run, there is a positive short‐term price reaction to the switch. Further analysis of trading turnover supports the notion that electronic trading enhances the liquidity and informativeness of stock markets, leading to a reduction in the cost of capital.  相似文献   
104.
This paper reports the results of the quantitative analysis of international experience of the relationship between infrastructure investment in the deployment of capacity that can carry large volumes of voice and data traffic and regulatory policy changes in the telecommunications sectors. It looks at the relationship between infrastructure investment for these infrastructure assets and the access pricing régimes for local exchange carriers in the United States and Europe. It then looks at the relationship between various aspects of regulatory and institutional policy changes in Europe and how they affect access prices.The paper finds that a lower access price promotes greater deployment of digital technology among US incumbent local exchange carriers (ILECs). Based on this finding, it suggests that it is in the ILECs interest to have access to their networks encouraged.The European data for interconnection are recent and far reaching conclusions are not feasible, but the findings, however, suggest that competition has worked by facilitating new entry through decreasing interconnection prices, although path dependencies, of existing and traditional concepts, in the mindsets of operators as well as regulators, may account for these findings.  相似文献   
105.
Joint value creation through partnering and networking is a topic of current interest. This paper proposes that the dimensions of the supplier's value creation in a supplier-customer relationship could be classified according to efficiency, effectiveness and network functions. These functions are interrelated, but they are conceptually distinct. The value creation process could be described as a spectrum ranging from core value, to added value, to future value. The value-producing potential of a supplier can be assessed reasonably well only in the case of the core value, where there is sufficient benchmarking information in the form of existing alternative offerings and solutions. A priori evaluation of the costs and benefits of added value and, especially, future value projects is problematic, because the realisation of the value is dependent on the development of multiple partners, technologies and industries. In these cases, we suggest that a customer could use a supplier's capability profile as an indicator of how suitable that particular supplier is for specific value creation projects. A framework connecting specific capabilities to different types of value production is suggested, and its managerial implications are discussed.  相似文献   
106.
107.
108.
109.
110.
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