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   41100篇
  免费   467篇
  国内免费   1篇
财政金融   7220篇
工业经济   2491篇
计划管理   6190篇
经济学   9189篇
综合类   835篇
运输经济   189篇
旅游经济   461篇
贸易经济   8123篇
农业经济   1285篇
经济概况   4906篇
信息产业经济   45篇
邮电经济   634篇
  2021年   137篇
  2020年   272篇
  2019年   429篇
  2018年   2757篇
  2017年   2552篇
  2016年   1726篇
  2015年   384篇
  2014年   656篇
  2013年   2621篇
  2012年   1163篇
  2011年   2709篇
  2010年   2428篇
  2009年   2221篇
  2008年   2206篇
  2007年   2466篇
  2006年   653篇
  2005年   866篇
  2004年   999篇
  2003年   1051篇
  2002年   769篇
  2001年   518篇
  2000年   521篇
  1999年   444篇
  1998年   429篇
  1997年   421篇
  1996年   433篇
  1995年   361篇
  1994年   374篇
  1993年   408篇
  1992年   416篇
  1991年   407篇
  1990年   334篇
  1989年   304篇
  1988年   293篇
  1987年   303篇
  1986年   323篇
  1985年   472篇
  1984年   439篇
  1983年   403篇
  1982年   378篇
  1981年   349篇
  1980年   394篇
  1979年   322篇
  1978年   272篇
  1977年   258篇
  1976年   199篇
  1975年   244篇
  1974年   194篇
  1973年   189篇
  1972年   134篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
Here we consider the hedging roles of a price futures contract versus a revenue futures contract. In the absence of idiosyncratic output risk, the revenue contract almost always dominates the price contract. Idiosyncratic output risk provides conditions under which the price contract should dominate. When production risk is largely idiosyncratic, a producer with an anticipated long actuals position might combine a long revenue futures position with a short price futures position. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:503–512, 2004  相似文献   
102.
Vendor Managed Inventory (VMI) involves the vendor making the replenishment decision for products supplied to a customer based on various inventory and supply chain policies. Information sharing between supply chain members is required in VMI. Sometimes VMI decisions are delayed and/or the information shared is inaccurate. This research examines the effects of information delay and accuracy, and the sharing of sales and forecast information in a VMI environment facing stationary and nonstationary demand. The simulation experiments show the impact of information delay, information inaccuracy, and information sharing on a variety of performance measures, including inventory levels and fill rates.  相似文献   
103.
104.
105.
106.
The Internet has successfully generated an ever-expanding cohort of users for all its major concomitant activities, including information gathering, communications and transactions. So far no attempt has been made to validate whether such a success is so deep as to transcend national cultures. Nor any work has been conducted to compare the internationalisation1 performances between online usage activities. The current study addresses these two research gaps from the perspective of four countries, i.e. Britain, Germany, Japan and Taiwan. Results show that although the technological forces have been quite successful in internationalising overall online usage activities, they succumb to the cultural forces as far as only the transactions activity, or more colloquially online purchase, is concerned. This indicates the relative difficulty in internationalising online purchase vis-à-vis other online usage activities. Further research on locating a series of step functions or kick-off time points regarding the development of online purchase is suggested.  相似文献   
107.
108.
109.
110.
This paper addresses the supply-side explanations of a logger shortage by estimating an occupational choice model that considers the role of earnings, nonpecuniary determinants and intergenerational factors. Our results showed that: (1) relative earnings have no statistically significant effect on career choice; (2) improvement in the public image of loggers substantially increases entry into logging; and (3) a strong intergenerational supply linkage exists but is currently being eroded.  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