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   17251篇
  免费   39篇
财政金融   2732篇
工业经济   784篇
计划管理   2665篇
经济学   4053篇
综合类   483篇
运输经济   17篇
旅游经济   5篇
贸易经济   4534篇
农业经济   9篇
经济概况   1392篇
信息产业经济   44篇
邮电经济   572篇
  2024年   2篇
  2023年   7篇
  2022年   8篇
  2021年   13篇
  2020年   24篇
  2019年   29篇
  2018年   2318篇
  2017年   2071篇
  2016年   1230篇
  2015年   114篇
  2014年   109篇
  2013年   122篇
  2012年   458篇
  2011年   1961篇
  2010年   1848篇
  2009年   1545篇
  2008年   1526篇
  2007年   1884篇
  2006年   81篇
  2005年   400篇
  2004年   479篇
  2003年   561篇
  2002年   262篇
  2001年   77篇
  2000年   61篇
  1999年   9篇
  1998年   20篇
  1997年   5篇
  1996年   16篇
  1995年   5篇
  1994年   2篇
  1993年   7篇
  1992年   1篇
  1991年   2篇
  1989年   2篇
  1987年   1篇
  1986年   14篇
  1985年   1篇
  1983年   1篇
  1982年   3篇
  1981年   2篇
  1979年   5篇
  1978年   1篇
  1977年   1篇
  1971年   1篇
  1970年   1篇
排序方式: 共有10000条查询结果,搜索用时 843 毫秒
921.
922.
Over 90 percent of companies are estimated to use IT Service Management (ITSM) frameworks, yet there is little research on their benefits to the Information Technology (IT) department and the business units. An international survey of 491 firms was conducted to assess the benefits of the IT Infrastructure Library (ITIL), the de-facto ITSM framework, specifically on how these benefits evolve as companies increase their adoption of the ITIL model. Also studied are the perception of challenges of the implementation and the number of ITIL processes implemented in relation to the progress of the adoption of ITIL. Results indicate that as the maturity of implementation increases, the perception of challenges decreases. Findings also show that as the maturity of implementation increases, the number of realized benefits increases, as well as the number of implemented ITIL processes. Implications for practitioners and researchers are also discussed.  相似文献   
923.
924.
Empirical Evaluation of Fair Use Flat Rate Strategies for Mobile Internet   总被引:2,自引:1,他引:1  
The fair use flat rate is a promising tariff concept for the mobile telecommunication industry. Similar to classical flat rates it allows unlimited usage at a fixed monthly fee. Contrary to classical flat rates it limits the access speed once a certain usage threshold is exceeded. Due to the current global roll-out of the LTE (Long Term Evolution) technology and the related economic changes for telecommunication providers, the application of fair use flat rates needs a reassessment. We therefore propose a simulation model to evaluate different pricing strategies and their contribution margin impact. The key input element of the model is provided by so-called discrete choice experiments that allow the estimation of customer preferences.  相似文献   
925.
The paper examines the current state of research as regards the eXtensible Business Reporting Language (XBRL) by using the literature review methodology. The results show that an empirical-quantitative research design is used most of the time. The contributions vary in substance in terms of research on XBRL and research with XBRL. Research with XBRL focuses on the development of conceptual XBRL extensions. Work on XBRL considers, for example, the changes in reporting as a result of XBRL as well as the acceptance and enforcement of financial reporting standards. The results point to open issues and are relevant for research and practice.  相似文献   
926.
The Future of Telecommunications   总被引:1,自引:1,他引:0  
  相似文献   
927.
928.
In this article, we have used a continuous EBIT-based model to study deferred tax liabilities under default risk. Quite surprisingly, default risk has been disregarded in research on deferred taxation. In order to underline its importance, we first calculated the probability of default, over a given time period, together with the contingent value of tax deferral. We then applied our theoretical model to a sample of 27,749 OECD companies. We showed that, when accounting for both firms with a negative EBIT and firms with a probability of default higher than 50% (over a 10-year period), a relevant percentage of firms were close enough to default. Hence, the expected present value of deferred taxes is much lower than that obtained in a deterministic context. From the Government’s point of view, deferred tax liabilities are a risk-free loan. Since only a portion are subsequently repaid, the Government should account for future losses due to companies’ default. So far, these estimates have been missing, although techniques do exist and are quite practical.  相似文献   
929.
930.
Existing studies of market orientation have hypothesized that the strength of the market orientation/performance relationship depends on environmental variables such as market turbulence, technological turbulence, and competitive intensity. To date most empirical studies have failed to confirm these hypotheses; however, these studies (1) assumed that performance is a linear function of the achieved level of market orientation and (2) tested whether environmental uncertainty moderates this relationship. A complementary explanation for the impact of environmental variables on a firm’s market orientation arises from studies of organizational behavior that link the need for coordination and control to environmental uncertainty and organizational strategy. Building on this perspective, the authors argue that (1) environmental uncertainty influences the desired level of market orientation and (2) the gap between the desired and achieved levels of market orientation influence business unit performance. The authors test these hypotheses with data collected from multiple respondents in 308 US firms. The data analysis confirms that the desired level of market orientation is a function of market turbulence, competitive intensity, technological turbulence, and innovation strategy. In addition, the desired level of market orientation positively influences the achieved level. Finally, when the achieved level of market orientation is less than the desired level, business unit performance is a negative function of the gap between the desired and achieved levels of market orientation.
Mark E. Parry (Corresponding author)Email:
  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