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   39000篇
  免费   447篇
财政金融   6622篇
工业经济   2556篇
计划管理   6204篇
经济学   8709篇
综合类   664篇
运输经济   159篇
旅游经济   365篇
贸易经济   8044篇
农业经济   1216篇
经济概况   4256篇
信息产业经济   47篇
邮电经济   605篇
  2020年   228篇
  2019年   330篇
  2018年   2727篇
  2017年   2503篇
  2016年   1670篇
  2015年   372篇
  2014年   573篇
  2013年   2445篇
  2012年   1053篇
  2011年   2621篇
  2010年   2298篇
  2009年   2119篇
  2008年   2096篇
  2007年   2417篇
  2006年   647篇
  2005年   893篇
  2004年   983篇
  2003年   1105篇
  2002年   782篇
  2001年   525篇
  2000年   511篇
  1999年   435篇
  1998年   444篇
  1997年   402篇
  1996年   407篇
  1995年   341篇
  1994年   337篇
  1993年   362篇
  1992年   363篇
  1991年   358篇
  1990年   333篇
  1989年   286篇
  1988年   252篇
  1987年   247篇
  1986年   292篇
  1985年   420篇
  1984年   409篇
  1983年   343篇
  1982年   354篇
  1981年   343篇
  1980年   337篇
  1979年   333篇
  1978年   269篇
  1977年   250篇
  1976年   242篇
  1975年   219篇
  1974年   211篇
  1973年   162篇
  1972年   140篇
  1971年   124篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.
The purpose of this article is to study the level of “in‐stock” customer service performance being offered in the catalog channel of distribution. The article provides benchmark information for the catalog industry. More importantly, the article serves as one test of the effectiveness of the modern supply chain, where the expectation is for near perfect orders. Customer service levels are studied by using an empirical observation methodology in which catalog retailer's in‐stock performance was measured. Comparisons are made across item type, season, retailer type, and days from catalog receipt. Overall, items were out‐of‐stock during 15.9% of all checkpoints, compared to an 11.8% stock‐out rate in an earlier study of bricks and mortar retailers.  相似文献   
112.
113.
THE SQUARED ORNSTEIN-UHLENBECK MARKET   总被引:2,自引:0,他引:2  
We study a complete market containing J assets, each asset contributing to the production of a single commodity at a rate that is a solution to the squared Ornstein-Uhlenbeck (Cox-Ingersoll-Ross) SDE. The assets are owned by K agents with CRRA utility functions, who follow feasible consumption/investment regimes so as to maximize their expected time-additive utility from consumption. We compute the equilibrium for this economy and determine the state-price density process from market clearing. Reducing to a single (representative) agent, and exploiting the relation between the squared-OU and squared-Bessel SDEs, we obtain closed-form expressions for the values of bonds, assets, and options on the total asset value. Typical model parameters are estimated by fitting bond price data, and we use these parameters to price the assets and options numerically. Implications for the total asset price itself as a diffusion are discussed. We also estimate implied volatility surfaces for options and bond yields.  相似文献   
114.
115.
116.
117.
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   
118.
119.
120.
This paper explores the landscape of training and development in the Republic of Ireland, a country with an impressive economic record in recent years. Both the Irish economic context and business context are explored. The national system for training and development and the surrounding policy and strategy context are set down. Survey data are drawn upon to examine the nature of training and development at organizational level. Here influence on training and development, levels of expenditure, the number of days per employee category and the dominant methods employed training and development are all discussed. Finally the academic study of training and development in the Republic of Ireland is examined.  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