全文获取类型
收费全文 | 20463篇 |
免费 | 498篇 |
国内免费 | 333篇 |
专业分类
财政金融 | 1256篇 |
工业经济 | 1140篇 |
计划管理 | 5379篇 |
经济学 | 3361篇 |
综合类 | 2109篇 |
运输经济 | 351篇 |
旅游经济 | 714篇 |
贸易经济 | 2695篇 |
农业经济 | 1938篇 |
经济概况 | 2351篇 |
出版年
2024年 | 96篇 |
2023年 | 335篇 |
2022年 | 361篇 |
2021年 | 525篇 |
2020年 | 718篇 |
2019年 | 502篇 |
2018年 | 482篇 |
2017年 | 670篇 |
2016年 | 597篇 |
2015年 | 649篇 |
2014年 | 1556篇 |
2013年 | 1950篇 |
2012年 | 1698篇 |
2011年 | 2091篇 |
2010年 | 1508篇 |
2009年 | 1295篇 |
2008年 | 1369篇 |
2007年 | 1221篇 |
2006年 | 1004篇 |
2005年 | 776篇 |
2004年 | 548篇 |
2003年 | 317篇 |
2002年 | 203篇 |
2001年 | 188篇 |
2000年 | 141篇 |
1999年 | 82篇 |
1998年 | 91篇 |
1997年 | 54篇 |
1996年 | 52篇 |
1995年 | 45篇 |
1994年 | 36篇 |
1993年 | 20篇 |
1992年 | 17篇 |
1991年 | 17篇 |
1990年 | 9篇 |
1989年 | 8篇 |
1988年 | 5篇 |
1987年 | 4篇 |
1986年 | 9篇 |
1985年 | 11篇 |
1984年 | 12篇 |
1983年 | 10篇 |
1982年 | 7篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1979年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
Bayesian MCMC Mapping of Quantitative Trait Loci in a Half-sib Design: a Graphical Model Perspective
N.A. Sheehan B. Gulbrandtsen M.S. Lund D.A. Sorensen 《Revue internationale de statistique》2002,70(2):241-267
Graphical models provide a powerful and flexible approach to the analysis of complex problems in genetics. While task-specific software may be extremely efficient for any particular analysis, it is often difficult to adapt to new computational challenges. By viewing these genetic applications in a more general framework, many problems can be handled by essentially the same software. This is advantageous in an area where fast methodological development is essential. Once a method has been fully developed and tested, problem-specific software may then be required. The aim of this paper is to illustrate the potential use of a graphical model approach to genetic analyses by taking a very simple and well-understood problem by way of example. 相似文献
12.
What's So Special about China's Exports? A Comment 总被引:2,自引:0,他引:2
Masanaga Kumakura 《中国与世界经济(英文版)》2007,15(5):18-37
Dani Rodrik argues that China's exports are unusually sophisticated for a country at its income level. He also claims that China's export sophistication reflects the government's successful industrial policy and has been instrumental in the recent acceleration of its economic growth. Although Rodrik's interpretation of China's economic growth is broadly correct, the accuracy of his empirical analysis is questionable. This note identifies several problems regarding the “export sophistication” index used in his empirical work and casts doubt on his analysis. 相似文献
13.
近年来,开放式基金在我国发展极为迅速,在数量不断增加的同时,呈现出的风格日趋多样化。面对种类繁多的开放式基金,投资者很难分清哪种投资风格更适合自己的风险偏好,因而投资风格逐渐成为基金最重要的识别系统之一。本文首先介绍了开放式基金的定义,其次,根据财务指标对开放式基金的投资风格进行分类并描述不同类型基金的特点。最后分析了基金最终风格出现趋同的原因。 相似文献
14.
国库集中支付操作风险产生机理的博弈分析 总被引:1,自引:0,他引:1
国库集中支付操作风险是指国库资金支付过程中出现违规操作行为的可能性。国库集中支付制度框架下财政资金支付活动是财政部门、预算单位、代理银行和人民银行共同参与的博弈过程。本文运用博弈理论首先分析国库集中支付操作风险产生的内在机理,然后剖析国库集中支付操作风险产生的外在博弈条件,最后从优化博弈条件出发,提出建立健全监督激励机制以防范国库集中支付操作风险的建议。 相似文献
15.
In horticultural markets, trade barriers often apply to the processed products whereas domestic support applies to farm-produced raw commodities. Here we assess the effects of such trade barriers and domestic support by simulating the effects of policy reform on global processing tomato markets, which are faced with modest processed product tariffs and high domestic support in the European Union (EU). Both protection and EU subsidy drive down world welfare, but we find that reducing import tariffs for tomato products would yield greater effects on markets and larger welfare impacts outside Europe than would reductions in EU domestic support. 相似文献
16.
Wolfram Elsner 《Local Economy》2004,19(3):249-263
Many regions have experienced long-run economic fluctuations generated by the life cycles of their dominant industrial clusters. During the downswings in the 1970s and 1980s, proactive structural policies were typically launched in German regions to combat job losses in their core clusters and to create new jobs in new industries. With respect to the German State of Bremen, this paper provides empirical evidence of: (1) a long-run regional downswing; (2) the potential job effects of proactive regional industrial policy programmes in terms of increasing regional employment, by safeguarding jobs in the regional core industries and creating new jobs in new growth industries; and (3) a time pattern in the job effects, which are related to the different generations of programmes. 相似文献
17.
Planning food services for a campus setting 总被引:1,自引:0,他引:1
Kenneth J. Klassen Elzbieta Trybus Arundhati Kumar 《International Journal of Hospitality Management》2005,24(4):579-609
Providing appropriate food services in a campus setting is increasingly important due to more demanding customers and because clients have less time to go off-campus when they need to eat. Using a university campus as an example, this research looks at customer satisfaction with existing food services and explores various methods for determining where to locate new facilities. This campus currently has great needs for additional food services, and it is shown clearly where additional food services are required. Also, the methods used are compared in terms of their effectiveness in finding the solution. 相似文献
18.
分析了河北省建国以来水利工程总体正效益,包括城市供水效益、农业灌溉效益、节水灌溉效益、治理盐碱土地效益、防止水土流失效益、防汛抗旱效益等。 相似文献
19.
我国城镇居民小康水平评价研究 总被引:1,自引:0,他引:1
朱顺泉 《山西财经大学学报》2004,26(3):35-37
通过对我国城镇居民小康水平的指标进行分析 ,设置了度量小康水平的评价指标体系 ,构建了评价我国城镇居民小康水平的因子分析模型 ,并应用该模型对我国城镇居民小康水平进行了合理的评价。 相似文献
20.
对环境税的经济学分析 总被引:1,自引:0,他引:1
随着我国经济的加速发展,环境问题越来越成为人们普遍关心的问题,成为影响经济进一步发展的制约因素。通过对环境税的经济学分析可以看出其较强的可行性和操作性。利用环境税矫正外部经济,从而达到运用税收手段保护环境的目的,是十分必要的。 相似文献