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   25212篇
  免费   672篇
财政金融   4613篇
工业经济   1851篇
计划管理   4327篇
经济学   5861篇
综合类   286篇
运输经济   193篇
旅游经济   389篇
贸易经济   4229篇
农业经济   1279篇
经济概况   2779篇
信息产业经济   3篇
邮电经济   74篇
  2023年   117篇
  2021年   161篇
  2020年   321篇
  2019年   517篇
  2018年   557篇
  2017年   582篇
  2016年   568篇
  2015年   376篇
  2014年   622篇
  2013年   2695篇
  2012年   860篇
  2011年   902篇
  2010年   781篇
  2009年   881篇
  2008年   825篇
  2007年   716篇
  2006年   678篇
  2005年   589篇
  2004年   522篇
  2003年   527篇
  2002年   477篇
  2001年   554篇
  2000年   506篇
  1999年   458篇
  1998年   514篇
  1997年   459篇
  1996年   465篇
  1995年   382篇
  1994年   406篇
  1993年   382篇
  1992年   394篇
  1991年   416篇
  1990年   370篇
  1989年   294篇
  1988年   288篇
  1987年   300篇
  1986年   280篇
  1985年   411篇
  1984年   397篇
  1983年   368篇
  1982年   328篇
  1981年   312篇
  1980年   309篇
  1979年   301篇
  1978年   247篇
  1977年   213篇
  1976年   206篇
  1975年   189篇
  1974年   179篇
  1973年   168篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
191.
Food stamp recipients may lack access to larger stores, reducing the availability of nutritious food. Reliance on smaller stores may have undesirable impacts. Policy alternatives include limiting food stamp redemption to larger stores and subsidizing store development. I estimate that limiting redemption to supermarkets and grocery stores, or supermarkets alone, results in losses ranging from $499.2 million to $1.05 billion, or $1.17 billion to $2.44 billion (respectively) annual loss in food stamp recipient welfare nationwide. The impact of improving access is also significant, ranging from $333.6 million to $931.2 million.  相似文献   
192.
A systems model was estimated to determine the effects of declining U.S. retail beef demand on farm-level beef prices and production. Retail beef demand declined by nearly 66% from 1976 to 1999. Results indicate autonomous shifts in retail demand significantly impacted farm-level demands and production. Based on equilibrium multipliers, the 1976–99 reduction in beef demand decreased real slaughter cattle prices and production by 32.1% and 11.2%, respectively. Real feeder cattle prices and production decreased by 8.0% and 22.6%, respectively. Combining the decreases in farm prices and production, slaughter and feeder cattle producers experienced a real revenue reduction of $13.3 billion (61%) due to the long-term decline in demand.  相似文献   
193.
This article provides empirical evidence on the intraday relation between spot volatility and trading volume in the Spanish stock index futures market. GARCH methodology is used to estimate spot volatility. We analyze the potential relation between spot and futures trading volume and spot volatility by estimating the corresponding conditional density functions as proposed in Quah (1997). Our results reveal no significant link between those variables. Similar findings arise when expected and unexpected volume is considered. Our results suggest that derivative market is not a force behind episodes of significant spot jump volatility. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:841–858, 2003  相似文献   
194.
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   
195.
This study analyzes the performance effects of proprietary, multihospital systems. It is shown that the organizational structure of these systems may affect the operating costs of member hospitals. Estimating a cost function for Florida hospitals and controlling for other factors, the average costs of HUMANA hospitals are empirically about 17 percent lower, while the costs of other leading chains are about 12 percent lower than not-for-profit institutions. These results contrast with earlier studies that found no such differences. Furthermore, the cost differential that exists between system and non-system hospitals can be largely attributed to technical efficiencies arising from chain ownership.  相似文献   
196.
197.
This work describes the evolution and potential of an elective course for students who have already been exposed to the standard techniques of problem solving as presented in traditional courses. Students apply these techniques to large scale problems in directed mullidisciplinary project teams. In doing so, they are provided with a unique learning experience allowing them to serve as a resource to the community. Course projects described here include the promotion of a railing retail district; the formulation, implementation and monitoring of litter reduction strategies; the economic evaluation of using inmate labor to clean public areas; and economic comparisons of recycling strategies for used tires.  相似文献   
198.
THE DETERMINANTS OF AUDIT FEES: SOME EMPIRICAL MODELS   总被引:2,自引:0,他引:2  
This paper proposes a model of audit fee determination based upon size and other characteristics of the auditee and the auditor, and upon whether there has been a recent change of auditor (which might lead to a low-balling effect). A novel feature of the model is that auditee size is measured in two dimensions, sales and assets, and is allowed to have a quadratic relationship with audit fee. The model was estimated for a sample of large listed UK companies for the years 1981 to 1988. The results support the low-balling hypothesis and also provide insights into the distinctive role of the Big 8 firms in the audit market.  相似文献   
199.
200.
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