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   149篇
  免费   2篇
财政金融   19篇
工业经济   7篇
计划管理   18篇
经济学   32篇
旅游经济   5篇
贸易经济   38篇
农业经济   23篇
经济概况   9篇
  2023年   2篇
  2020年   1篇
  2019年   1篇
  2018年   6篇
  2017年   2篇
  2016年   1篇
  2015年   3篇
  2014年   5篇
  2013年   17篇
  2012年   6篇
  2011年   5篇
  2010年   4篇
  2009年   8篇
  2008年   6篇
  2007年   5篇
  2006年   3篇
  2005年   5篇
  2004年   3篇
  2003年   1篇
  2000年   3篇
  1998年   3篇
  1995年   8篇
  1994年   3篇
  1993年   4篇
  1992年   1篇
  1991年   5篇
  1990年   4篇
  1989年   5篇
  1988年   2篇
  1987年   4篇
  1986年   3篇
  1985年   5篇
  1984年   2篇
  1983年   2篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1975年   1篇
  1973年   3篇
  1971年   2篇
  1968年   1篇
排序方式: 共有151条查询结果,搜索用时 15 毫秒
1.
Selecting Sites for New Facilities Using Data Envelopment Analysis   总被引:3,自引:0,他引:3  
This paper develops a mathematical programming model for obtaining a best set of sites for planned facilities. The model is concerned with those situations where resource constraints are present. The specific setting for the paper involves the selection of sites for a set of retail outlets, wherein the ratio of aggregate outputs to inputs for the selected set is maximal among all possible sets that could be chosen. At the same time, the model guarantees that the only sets of stores allowable are those for which the available resources are used to the maximum extent possible.  相似文献   
2.
3.
Plant-based precision nitrogen fertilizer application technologies have been developed as a way to predict and precisely meet nitrogen needs. Equipment necessary for precision application of nitrogen, based on sensing of growing wheat plants in late winter, is available commercially, but adoption has been slow. This article determines the expected profit from using a plant-sensing system to determine winter wheat nitrogen requirements. We find that plant-sensing systems have the potential to be more profitable than traditional nonprecise systems, but the existing system simulated was roughly breakeven with a traditional system.  相似文献   
4.
In this paper the impact of price risk on millet production in Niger is investigated. The hypothesis that farmers respond to output price risk is tested. The results indicate that millet acreage planted decreased when millet price risk increased or when price risk of the competing crop decreased and therefore farmers do respond to changes in risk.  相似文献   
5.
The purpose of this research reflection is to set the stage for a more detailed research agenda in exploring event sport tourism experiences of support partners (SPs) during events. Using photo elicitation, the article presents a preliminary empirical case study. Visual materials were assembled by three female participants to interrogate how SPs experience “spectator space” and explore the processes that produced those experiences, an area of study that remains relatively unexplored in leisure research. Initial findings show how waiting to see the triathlete can be anxiety-provoking, but the release of emotion when smiles are exchanged constitutes core activities of being there. However, there are more questions than answers, and there is a need for further inquiry. Suggestions for future research on the impact of serious leisure on intimate others are given.  相似文献   
6.
7.
Varying institutional environments provide the foundation for a great deal of international business (IB) research yet relatively little empirical work has examined the association between institutional factors and new business development in emerging economies, although the importance of new business development for economic transition and growth is widely acknowledged. Drawing from social network and institutional theories, we address this gap by examining the effect of associational activity on the level of new business activity in emerging economies, and testing the thesis that associational activity becomes more instrumental for new business creation when aspiring entrepreneurs confront higher institutional burdens (i.e., obstacles derived from underdeveloped or absent institutions). On the basis of data from two cross-national research projects—the Global Entrepreneurship Monitor and the World Values Survey—we find a positive relationship between a country's associational activity and new business activity; this relationship is stronger for higher regulatory and normative institutional burdens and lower cognitive institutional burdens. This study is among the first to examine empirically the possible substitution effect between social ties and institutions to predict new business activity; it paints a nuanced picture of how social networks might be more instrumental in contexts characterized by weak institutions. We discuss the implications of these findings for IB theory and practice and offer directions for further research in the area.  相似文献   
8.
9.
10.
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