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   8404篇
  免费   304篇
财政金融   1802篇
工业经济   708篇
计划管理   1351篇
经济学   1804篇
综合类   111篇
运输经济   94篇
旅游经济   164篇
贸易经济   1724篇
农业经济   271篇
经济概况   607篇
信息产业经济   4篇
邮电经济   68篇
  2023年   59篇
  2022年   47篇
  2021年   81篇
  2020年   123篇
  2019年   200篇
  2018年   223篇
  2017年   247篇
  2016年   215篇
  2015年   176篇
  2014年   279篇
  2013年   989篇
  2012年   312篇
  2011年   362篇
  2010年   336篇
  2009年   375篇
  2008年   332篇
  2007年   285篇
  2006年   261篇
  2005年   292篇
  2004年   244篇
  2003年   250篇
  2002年   238篇
  2001年   198篇
  2000年   178篇
  1999年   181篇
  1998年   149篇
  1997年   152篇
  1996年   113篇
  1995年   120篇
  1994年   129篇
  1993年   113篇
  1992年   106篇
  1991年   90篇
  1990年   63篇
  1989年   72篇
  1988年   65篇
  1987年   67篇
  1986年   64篇
  1985年   114篇
  1984年   94篇
  1983年   85篇
  1982年   87篇
  1981年   70篇
  1980年   74篇
  1979年   68篇
  1978年   57篇
  1977年   63篇
  1976年   60篇
  1974年   31篇
  1973年   22篇
排序方式: 共有8708条查询结果,搜索用时 15 毫秒
81.
The Chicago Board Options Exchange concurrently listed European‐style and American‐style options on the Standard and Poor's 500 Index from April 2, 1986 through June 20, 1986. This unique time period allows for a direct measurement of the early exercise premium in American‐style index options. In this study, using ask quotes, we find average early exercise premiums ranging from 5.04 to 5.90% for calls, and from 7.97 to 10.86% for puts. Additionally, we are able to depict a potentially useful functional form of the early exercise premium. As in previous studies, we find some instances of negative early exercise premiums. However, a trading simulation shows that traders must be able to trade within the bid–ask spread to profit from these apparent arbitrage opportunities. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:287–313, 2003  相似文献   
82.
This study attempts to infuse relationship marketing theory into the study of logistics outsourcing relationships. In particular, the study demonstrates that not all of the partnerships between customers and providers of third‐party logistics services are the same in terms of their level of development. The existence of distinct levels of partnership established previously in the logistics literature is partially supported and a relationship between level of partnership development and the customer perceptions of key relationship marketing elements and outcomes is established. While exploratory in nature, these findings suggest there are benefits for the increased costs of developing closer partnerships.  相似文献   
83.
84.
85.
This paper examines the return of the original class of common stock around the announcement of the creation of a second class of stock. As in previous studies, this one finds a generally ambiguous market reaction on the first public announcement. However, this paper offers new evidence that both the voting rights and the compensation for loss of voting rights are important determinants of the market's reaction. Specifically, it demonstrates that a second class stock issue that contains no compensation for the lost voting rights results in negative returns. When the original stockholders are compensated for lost voting rights, they experience positive abnormal returns.  相似文献   
86.
87.
This paper examines whether there has been a transformation towards company-specific and unitarist industrial relations in Germany. On the basis of 25 case studies of employment practices in German and foreign-owned banks and chemical firms as well as industry data, the research found that the German system has so far remained relatively stable. Companies in the two industries studied generally still comply with the labour market institutions of multi-employer collective bargaining, workplace representation and initial vocational training. Pressures have been accommodated by changes within the system rather than by a radical change of the system.  相似文献   
88.
This paper reports on aspects of land tenure in western Sudan, especially the nature of tenure insecurity and the functioning of the land rental market. The active land rental market accounted for about one-third of cultivated land. Patterns of land rental transactions, and tests of the importance of insecurity in renting land, where the owner may not be able to reclaim land rented out, do not support the presumption that rental markets perform poorly. The role of the sheikh as administrator of village land, and the claims of large landowners to vast tracts, are, however, important political problems that must be resolved before attempts at ‘rationalizing’ land tenure.  相似文献   
89.
Abstract: The dwindling nature of overseas development assistance in the early part of the 1990s called for the establishment of capital markets in some African countries, including Ghana, with the view to increasing foreign direct investments and achieving sustainable inflows, growth and development. One important factor which affects the determination of prices and the growth of capital markets is macroeconomic risk which is quite high in developing countries. Following works done on advanced stock markets, this study seeks to investigate the impact of six macroeconomic risk factors on asset pricing in the various industrial classification — financial, manufacturing, food and beverages, distribution and mining under the Ghana Stock Exchange (GSE) for the period January 1997 to December 2002. Using the arbitrage pricing methodology developed by Ross (1976) and Chen et al. (1986) , the study revealed that investors in Ghana considered three main macroeconomic risk factors — short‐term interest rate risk, inflation risk and the term structure of the country's interest rate in the determination of the various industrial asset prices during the period under consideration. Analysis of the risks and returns profile of the industries also shows that financial assets made the best gains on the market. Both general and specific policy recommendations aimed at improving the performance of the GSE are explored.  相似文献   
90.
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