全文获取类型
收费全文 | 4492篇 |
免费 | 250篇 |
国内免费 | 75篇 |
专业分类
财政金融 | 251篇 |
工业经济 | 267篇 |
计划管理 | 1080篇 |
经济学 | 695篇 |
综合类 | 622篇 |
运输经济 | 160篇 |
旅游经济 | 29篇 |
贸易经济 | 593篇 |
农业经济 | 495篇 |
经济概况 | 625篇 |
出版年
2024年 | 23篇 |
2023年 | 73篇 |
2022年 | 87篇 |
2021年 | 107篇 |
2020年 | 153篇 |
2019年 | 82篇 |
2018年 | 81篇 |
2017年 | 92篇 |
2016年 | 139篇 |
2015年 | 173篇 |
2014年 | 347篇 |
2013年 | 398篇 |
2012年 | 432篇 |
2011年 | 549篇 |
2010年 | 428篇 |
2009年 | 317篇 |
2008年 | 295篇 |
2007年 | 247篇 |
2006年 | 216篇 |
2005年 | 164篇 |
2004年 | 124篇 |
2003年 | 93篇 |
2002年 | 46篇 |
2001年 | 40篇 |
2000年 | 23篇 |
1999年 | 27篇 |
1998年 | 14篇 |
1997年 | 10篇 |
1996年 | 14篇 |
1995年 | 4篇 |
1994年 | 8篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1981年 | 2篇 |
1979年 | 1篇 |
排序方式: 共有4817条查询结果,搜索用时 15 毫秒
1.
《Food Policy》2019
This paper reviews the changes in Shuanghui’s operations after the Smithfield acquisition as well as transformations in China’s pork industries. As income grows and diets change, there has been an increasing demand for high-quality pork and more processed pork products. However, China’s swine and pork industries are still at an early stage of development as evidenced by the low market concentration, intensive use of labour, a proliferation of intermediaries, and low levels of technology. Bounded by the established consumer preferences for freshness and the status quo in the midstream and upstream segments, Shuanghui is in a slow process of upgrading its domestic operations with Smithfield’s leading brands, import of chilled and frozen pork, advanced technologies, and the vertically integrated business model after this acquisition. In particular, it remains unclear whether Shuanghui can follow Smithfield’s experience to establish stable and safe hog supplies by multiplying self-owned hog farms, maintain and expand its current contracts with large-scale commercial hog farms, or rely more on global sourcing of pork primarily from the U.S. 相似文献
2.
Does placing a display of complementary condiments (e.g., ketchup, mustard, buns,etc.) next to a display of hamburgers make shoppers more likely to attend to the hamburgers? Prior work has established that in-store marketing strategies play an important role in drawing attention to products in a retail setting. Building on this research, the present study develops a framework to better understand how shoppers in a natural retail environment attend to displays of complementary products, and how this attention transfers to a focal product. The results suggest that assortment complexity of a display positively affects initial attention capture.. Further, initial attention capture leads shoppers to spend longer evaluating the complementary products in the display, which, in turn, increases evaluation and choice of the focal product. As such, our framework indicates that complementary product displays can be effective at increasing attention to and choice of an associated focal product. 相似文献
3.
4.
Christopher G. Reddick 《Financial Accountability and Management》2003,19(4):315-339
This article tests three common budgetary decision–making theories in the US states. Pooled time series cross–section analysis is used from 1960 to 1996 to test the garbage can theory and incrementalism, and from 1989 to 1996 to test various theories of rational budgeting. The results demonstrate that there was some support for all three theories in terms of their impact on reducing state budget outputs. Rational budgeting reduces expenditures in aggregate, incrementalism has relatively low explanatory power below the aggregates, and garbage can budgeting is more prevalent in functional areas than for government as a whole. These findings imply that the future research agenda on budgetary decision–making theories should focus more on a system–wide approach, which takes into account many of the characteristics of all three rival models of decision–making, rather than exclusively focusing on each one singly. 相似文献
5.
随着科学技术的不断创新和提高,专利技术的交易越来越频繁,其交易所占贸易的比重也越来越大。文章指出,在专利技术交易发生前后对被交易技术进行必要的产权研究,理顺交易双方的产权关系,明确交易双方的权利和义务,对于交易双方避免交易错位和发生法律纠纷有着重要的指导意义。 相似文献
6.
说明了均匀、轴对称、无源介质是一个K-辛空间上的Hamilton系统,Hamilton函数是系统的守恒量;数值计算辐射强度角分布的合理途径是将辐射迁移方程离散成以离散Hamilton函数为守恒量的有限维K-辛空间上的正则方程,并采用保离散Hamilton函数守恒的K-辛算法数值求解. 相似文献
7.
Poverty Traps and Index-Based Risk Transfer Products 总被引:1,自引:0,他引:1
8.
The economics of land transfer and title insurance 总被引:3,自引:0,他引:3
In the presence of uncertainty over the title of land (due to fraud or error), a legal system can protect either the current (innocent) owner, or a previous owner who claims title. The predominant system in the United States generally awards title to the latter in the event of legitimate claim. Thus, current owners frequently purchase title insurance to provide indemnification in the event of a loss. In contrast, the Torrens system awards title to the current owner, but provides for indemnification of any legitimate claimants. We evaluate these two systems and argue that if transaction costs are low, both promote efficient assignment of title (according to the Coase Theorem), but if transaction costs are high, the Torrens system is more likely to award title to the party that values it the most (namely, the current possessor). 相似文献
9.
通过对高等职业院校信息化建设中存在的一些问题进行分析,提出了职业院校信息化建设过程可能存在的问题、并提出解决方案。 相似文献
10.
中国大中型造纸企业技术创新机制探讨 总被引:1,自引:1,他引:0
建立和健全大中型企业以技术创新为核心的技术进步的内在机制 ,保障提高技术创新的绩效是目前亟待解决的问题。本文根据 2 0 0 0年中国科技统计年鉴中的数据 ,对大中型造纸企业在技术创新方面存在的主要问题进行分析 ,就如何完善其动力机制和运行机制提出建议 相似文献