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   42714篇
  免费   463篇
  国内免费   3篇
财政金融   5872篇
工业经济   2526篇
计划管理   7910篇
经济学   8826篇
综合类   2560篇
运输经济   118篇
旅游经济   143篇
贸易经济   7353篇
农业经济   1681篇
经济概况   5471篇
信息产业经济   61篇
邮电经济   659篇
  2024年   54篇
  2023年   225篇
  2022年   448篇
  2021年   618篇
  2020年   684篇
  2019年   441篇
  2018年   2734篇
  2017年   2784篇
  2016年   1773篇
  2015年   708篇
  2014年   820篇
  2013年   1415篇
  2012年   2441篇
  2011年   5078篇
  2010年   4585篇
  2009年   3219篇
  2008年   3415篇
  2007年   3523篇
  2006年   1870篇
  2005年   2050篇
  2004年   999篇
  2003年   1051篇
  2002年   673篇
  2001年   455篇
  2000年   271篇
  1999年   151篇
  1998年   123篇
  1997年   92篇
  1996年   72篇
  1995年   32篇
  1994年   36篇
  1993年   54篇
  1992年   25篇
  1991年   20篇
  1990年   27篇
  1989年   17篇
  1988年   8篇
  1987年   10篇
  1986年   20篇
  1985年   6篇
  1984年   27篇
  1983年   15篇
  1982年   9篇
  1981年   8篇
  1980年   8篇
  1979年   10篇
  1978年   11篇
  1976年   7篇
  1975年   5篇
  1971年   4篇
排序方式: 共有10000条查询结果,搜索用时 8 毫秒
931.
932.
933.
Classic theories of comparative advantage point to factor productivity and factor abundance as determinants of specialization and trade. Likewise, geography and topography can determine trade patterns. Institutions, however, are increasingly seen as important sources of comparative advantage. A global drug prohibition regime implies that institutional quality matters more than traditional sources in the drug trade. This paper theoretically models trade patterns of illicit goods and confirms the role of institutions empirically with respect to the drug trade. In particular, illicit enterprises gain force in countries where resources are scarce, drug enforcement is uncertain, and institutions are weak in absolute terms and relative to neighboring countries. I propose several policy alternatives that emphasize economic opportunity for the poor and institutional quality that complement drug prohibition.  相似文献   
934.
The article analyzes the impact of the collapse of world oil prices on the reduction of defense budget, production of weapons, innovative and personnel potential of the defense industry, and on country’s defense capability. Some proposals for the concept of structural changes in the defense industry have been formulated based on experience converting the defense industries in the Soviet Union, the United States, China, and France.  相似文献   
935.
中国在现代化进程中面临着一些现代性问题的困扰,其中,贫富分化成为社会矛盾的焦点之一。改革开放以来,中国居民生活水平得到整体提升,但也出现了结构上的分化。造成贫富差距的原因是复杂多重的。其中,城乡二元体制造成了城乡资源分配不公和收入差距,垄断行业的存在则使得资源在少部分群体中集聚,加深了贫富之间的鸿沟。此外,中国的社会保障制度没能充分发挥其调节作用,使得部分底层群体无法解决温饱问题,造成"极贫"群体的出现。值得关注的是,单位体制下的既得利益者,在住房制度改革后又获得福利性住房,住房不公平由此产生财产不公平。国家对于不断拉大的收入差距主要采取宏观政策加以调控,改革财税制度和完善社会保障同时进行,但这并不能因此改变由城乡二元体制和垄断等所带来的必然结果,因而只能起到局部调节收入差距的效果,不能实现真正的社会公正。  相似文献   
936.
This paper reviews the existing mechanisms of innovative development in the world economy focusing on emerging technologies markets evolution on the example of nanotechnology. The question has been raised of whether nanotechnologies can provide the core of the new technological revolution, and whether these prospects exist for NBIC convergence. In this connection the development of the global market for nano-enabled products following the 2007–2009 crisis and the reliability of the related development forecasts have been assessed. Particular attention has been paid to peculiarities of nanoenabled product market structure and the impact of stagnating R&D costs in the field of nanotechnology.  相似文献   
937.
Haze pollution has become the most important environmental issue in China in recent years. Using the data of PM2.5 concentration and stocks of listed companies located in Beijing between 2010 and 2014, this article investigates the effects of haze pollution on stock performances. Empirical results indicate that haze pollution has significant negative effects on stock returns and significant positive effects on stock volatilities, through the channel of investors’ mood. Furthermore, the effects of haze pollution on stock returns emerge gradually and the effects of haze pollution on stock volatilities weaken gradually over time during a trading day.  相似文献   
938.
939.
Despite the rapid growth of Internet banking (IB), customers in developing countries still hesitate to adopt this technology and its use in the Middle East remains low. This study aims to identify and examine the factors that predict behavioural intention and adoption of IB in Jordan. Four factors – hedonic motivation, habit, self-efficacy and trust – are proposed in a conceptual model. Data was collected by means of a survey with bank customers in Jordan. Structural equation modelling (SEM) was used to analyse the data. The results strongly supported the conceptual model. Further, hedonic motivation, habit, self-efficacy and trust were all confirmed to have a significant influence on behavioural intention. Trust was found to be strongly predicted by both hedonic motivation and self-efficacy. This study provides both academics and practitioners with an insight into the factors that can be used to encourage customer adoption of IB specifically in a Middle East context.  相似文献   
940.
A decision support model (DSM) is presented and implemented in order to identify probable and realistic export opportunities for Greece. The aim of the model is to select those combinations of products and countries of destination (markets) that are attractive based on widely recognized criteria (such as country risk indicators, macroeconomic data, market shares, accessibility of destination country, degree of market concentration, etc.). The DSM consists of a filtering process during which the less attractive export opportunities are successively eliminated in order to focus on those markets that have the desired characteristics. International trade data at the HS six-digit level up to 2011 where used. The results indicate that there exist significant export opportunities for Greece. Export opportunities are listed and categorized according to criteria such as the market characteristics of the destination country and Greece’s market share.  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