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   3601篇
  免费   165篇
  国内免费   43篇
财政金融   449篇
工业经济   177篇
计划管理   559篇
经济学   782篇
综合类   449篇
运输经济   9篇
旅游经济   23篇
贸易经济   727篇
农业经济   111篇
经济概况   523篇
  2024年   9篇
  2023年   50篇
  2022年   52篇
  2021年   82篇
  2020年   125篇
  2019年   122篇
  2018年   103篇
  2017年   125篇
  2016年   119篇
  2015年   102篇
  2014年   229篇
  2013年   400篇
  2012年   282篇
  2011年   290篇
  2010年   227篇
  2009年   174篇
  2008年   250篇
  2007年   239篇
  2006年   235篇
  2005年   183篇
  2004年   119篇
  2003年   80篇
  2002年   49篇
  2001年   52篇
  2000年   31篇
  1999年   22篇
  1998年   18篇
  1997年   8篇
  1996年   12篇
  1995年   4篇
  1994年   4篇
  1993年   1篇
  1992年   1篇
  1991年   3篇
  1990年   1篇
  1989年   3篇
  1984年   2篇
  1982年   1篇
排序方式: 共有3809条查询结果,搜索用时 15 毫秒
1.
In the UK, 1950-75 was a lively period in the long-running debates between proponents of absorption and marginal costing. In the nexus of competing interests, management accountants advocated and defended rival costing systems with much vigour and passion. Expressed in the language of the times, these debates were 'battles' in the costing 'war'. We focus on these battles, analysing the various forces that operated upon the combatants, and locate them in the wider costing war. We conclude that no final resolution of the conflict was achieved in the twentieth century, nor is one likely in the foreseeable future.  相似文献   
2.
精馏过程的节能,对于减少能源消耗,降低生产成本和保护环境具有十分重要的意义.在精馏过程中可以采用最适宜回流比操作和最佳进料状态,使用中间冷凝器和中间再沸器,高效精馏、热泵精馏.合理安排多组分物料分离流程,直接利用过程热量及开发应用高效换热器等措施.本文从最佳回流比R的选择、进料温度及进料状态的确定等方面,详细的分析了在精馏塔的设计过程中,如何实现设计的优化问题,以实现节能降耗.  相似文献   
3.
There is an increasing recognition of the potential importance of micro, small and medium enterprises (MSMEs) for employment, income and poverty reduction in Ethiopia. Although the MSME sector contributes significantly to the national economy, the high failure rate among well established small businesses and enterprises is a matter of major concern. A random sample of 500 small businesses and enterprises selected from five major cities in Ethiopia were followed up for 6 years in order to assess the impact of influential factors that affect the long‐term survival and viability of small enterprises. Hazard ratios estimated from the Cox Proportional Hazards Model were used to quantify the impact of key predictors of survival. Businesses that ceased operation were characterised by inadequate finance (61%), low level of education (55%), poor managerial skills (54%), shortage of technical skills (49%), and inability to convert part of their profit to investment (46%). The study shows that participation in social capital and networking (iqqub schemes) was critically helpful for long‐term survival. Businesses that did not participate in iqqub schemes regularly were found to be 3.25 times more likely to fail in comparison with businesses that did. Results of the study have implications that could be used for developing policy initiatives that are aimed at fostering long‐term growth in small businesses and enterprises.  相似文献   
4.
The concept and the characteristic of spread spectrum technology of knowledge network based on information integration environment are given at first. And the basic principle of the wireless network of knowledge and information is recommended. Then a project alternatives using the spread spectrum technology and wireless network is given to build a across-the abroad knowledge network system.  相似文献   
5.
王婷 《改革与战略》2008,24(11):208-211
日本和韩国近年来对我国的直接投资规模不断扩大,其产业转移的趋势已经影响到我国的产业结构。文章根据日本和韩国对华直接投资的变化,从产业转移的动机、产业转移的行业分布、产业转移的主体构成以及产业转移的区位分布等四个方面,对日本韩国产业转移的特点进行分析与比较,从而为我国合理利用外资,促进我国产业结构升级提供参考。  相似文献   
6.
7.
现行的因素分析法是依据经济现象中浅显的数量依存关系进行粗略的定量分析,有时忽略一些实质性因素对综合指标的影响,而且由于指标间的相关性某一因素对综合指标的直接影响与间接影难以精确地被反映出来。在对现行因素分析法评价的基础上,改变传统的依据简单统计关系式、定义式、构成关系式来构建指标体系的思路,结合社会现象的运行机制,以多元函数的形式将影响综合性指标的实质性因素引入数量关系式,并借助中间变量利用微积分来分析各因素的直接影响与间接影响。  相似文献   
8.
张琦 《特区经济》2011,(5):234-235
通过对我国出口产业的出口竞争力与出口产业遭受反倾销的相关性分析,指出我国技术密集型产业和我国劳动密集型产业一样也遭受到了国外大量的反倾销;在分析原因的基础上,提出了我国技术密集型产业和劳动密集型产业各自的反倾销规避路径。  相似文献   
9.
This paper investigates the factors determining foreign direct investment (FDI) location choices of Chinese multinational firms. We developed a conceptual framework that synthesizes traditional economic factors and institutional perspective. Then several hypotheses were developed in line with the framework and empirically tested using panel data of Chinese outward FDI to eight economies in East and Southeast Asia across a time period of thirteen years. Our findings suggest that institutional factors demonstrate a higher level of significance, complexity and diversity in determining FDI location choice in comparison with economic factors, while both types of factors influence the FDI location choice of Chinese multinational firms. We also found that the FDI location choices of Chinese firms have a dynamic nature, as statistical evidence indicates a heterogeneous response of Chinese FDI towards different economic groups and during different time periods.  相似文献   
10.
This research considers how transnational entrepreneurs in emerging economies identify and develop opportunities for investment into international ventures. Specifically, this study seeks to identify common drivers for outward investment by transnational entrepreneurs from their country of origin (Brazil and India) to their adopted country (the US). Findings indicate three common drivers of this type of internationalization: formal education, effectual logic, and the leveraging of perceived market differences. Furthermore, the data show that entrepreneurs prefer a gradual process of investment rather than a large-scale initial investment during the exploitation of international opportunities in the adopted country. The results of this study have important practical implications and are valuable additions to the scholarly understanding of the growing field of transnational entrepreneurship.  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