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   579篇
  免费   33篇
财政金融   105篇
工业经济   49篇
计划管理   125篇
经济学   104篇
综合类   4篇
运输经济   6篇
旅游经济   6篇
贸易经济   145篇
农业经济   15篇
经济概况   28篇
邮电经济   25篇
  2024年   1篇
  2023年   8篇
  2022年   6篇
  2021年   16篇
  2020年   16篇
  2019年   21篇
  2018年   23篇
  2017年   25篇
  2016年   29篇
  2015年   28篇
  2014年   36篇
  2013年   77篇
  2012年   49篇
  2011年   38篇
  2010年   42篇
  2009年   38篇
  2008年   26篇
  2007年   22篇
  2006年   18篇
  2005年   22篇
  2004年   20篇
  2003年   13篇
  2002年   8篇
  2001年   4篇
  2000年   8篇
  1999年   3篇
  1998年   3篇
  1996年   2篇
  1995年   1篇
  1994年   2篇
  1992年   2篇
  1988年   1篇
  1986年   1篇
  1985年   1篇
  1984年   1篇
  1980年   1篇
排序方式: 共有612条查询结果,搜索用时 0 毫秒
551.
552.
Although there have been studies concerning information and communication technologies adoption in the tourism industry, the research trends of mobile tourism (m-tourism) are still not very clear due to the short development time and emerging nature of the technologies. To fill this gap, this study reviewed and analyzed articles related to online reviews of tourism and hospitality published in academic journals between 2002 and 2015. Through a keyword-driven search and content analysis, 92 articles are identified as relevant and classified into three topics. Our findings contribute to a better understanding of this promising research direction by presenting the interesting classification methods used by relevant publications and their insights. This paper also discusses significant topical and methodological trends, and contributes to an overall understanding of existing research and its limitations.  相似文献   
553.
This paper presents a methodological framework for scale-specific assessment of soil erosion by water. The framework enables the definition of hierarchical, functional and modular nested reference units which result from the integrated consideration of policy, process and model hierarchies. The framework is applied on three planning levels: at first, large scale zones are designated that show a defined risk potential for soil erosion (first level: catchments and drainage areas in the German Federal State of Saxony-Anhalt, ca. 20,000 km2). By both increasing model complexity and spatio-temporal resolution of input data, the results are locally specified within these risk zones (second level: designated farms and fields in a study area of 141 km2). This is the basis for the prediction of soil erosion areas and sediment transport to hydrologic drainage networks as well as for small scale management and measure planning (third level: designated field blocks in the study area). On this level, the mitigation of soil erosion and sediment entry to the river system is demonstrated by simulating the introduction of conservation management practices, vegetation and riparian buffer strips.  相似文献   
554.
This article considers likely future trends in leisure time and tourism. The economic climate over the next 20 years is usually predicted to produce an increase in tourism. However, there are clearly discernible limits to the growth of tourist demand in the industrialized countries, due to changing economic conditions, modified consumer behaviour and new technologies. Increasing leisure time will be allocated to other uses besides tourism. The composition of the tourist population will alter, with increasing proportions of, eg senior citizens. There will be greater emphasis on individual/self-determined holidays, and on educational and recreational pursuits. Increasing environmental awareness will effect planning policies and tourist demand. An interdisciplinary, long-term approach to tourism planning is recommended.  相似文献   
555.
556.
557.
The German sports betting market has traditionally been characterised by highly controversial regulation that includes a strong role for public actors and strict limitations for public companies. This paper explores recent developments in the regulation of sports betting in Germany and provides a simple theoretical analysis of its legitimacy. The paper then focuses on the taxation of sport betting, one of the most disputed matters, and provides an overview of the consequences of the new taxation regime introduced in 2012 as well as a comparison of the German situation with that of other European countries.  相似文献   
558.
Using Swedish microdata, we find no evidence for the concerns circulating in the public debate that foreign acquisitions lead to reductions in both R&D expenditures and high-skilled activities in targeted domestic firms for either MNEs or non-MNEs. Previous studies have only focused on larger firms. In this paper, we are able to study the impact on smaller firms (fewer than 50 employees), which is important because 90% of the firms acquired by foreign enterprises meet this criterion. For this group of firms, there is no information on R&D, but by using the register of educational attainment, we obtain data on the share of high-skilled labour in all Swedish firms, irrespective of size. Interestingly, we find that among smaller firms, foreign enterprises tend to acquire high-productive, skill-intensive firms (cherry-picking). After the acquisitions, skill upgrading appears in acquired smaller, non-MNE firms, particularly in the service sector.  相似文献   
559.
Corporate social performance (CSP) has become a widely applied concept, discussed in most large firms’ corporate reports and the academic literature alike. Unfortunately, CSP has largely been employed as a way of demonstrating corporate social responsibility (CSR) in practice, or to justify the business case for CSR in academia by relating some measure of CSP to some measure of financial performance. In this article, we discuss multiple shortcomings to these approaches. We argue that (1) CSR activities need to be managed and measured as projects and aggregated to the business or corporate level using a project portfolio; (2) appropriate measures need to be identified that move away from reporting the firm’s activities toward quantifying actual social outcomes achieved; and (3) given the types of projects prevalent in CSR, statistical evaluation methods common in other fields (ideally, pre-test post-test control group designs, such as used in medicine or propensity score matching for ongoing or past projects) should be employed to properly measure outcomes. We make a first, albeit imperfect, attempt at using such an approach with data collected on behalf of the Patrimonio Hoy project, a well-publicized CSR initiative carried out by Cemex in Mexico. We show that the results from this data reinforce concerns voiced earlier in this article.  相似文献   
560.
In this contribution a literature review is conducted to illustrate how national culture influences phases of the design of information systems. For this purpose, we review the literature in order to identify reliable and commonly approved findings as well as still open remaining questions. Fundamentally, our literature review is a comprehensive framework that sets typical dimensions of system design as well as main types of cultural research in relation to each other. The existing research results in the area of national culture are classified along the levels of system design and attributed to typical phases of the design of information systems. It thus becomes apparent that in the domain of culture and information system design it is often only the design subject or the design object that is addressed. Contributions that connect both levels rarely exist. In our review, only a limited number of publications could be identified that covered concrete phases of the development providing system design, implementation, as well as verification and validation. From a theoretical perspective, there is an obvious dominance of Hofstede??s cultural dimensions that well address single topics of the design, such as user interface and inter cultural problems in development teams. Other domains, however (e.g., technology and architecture), are inadequately explained. Further, a predominantly phenomenological focus becomes obvious. The observed cultural phenomena and the connected interpretations are usable in a limited way for concrete development initiatives. The contribution ends with the vision of a theory for the culturally sensitive design of socio-technical information systems that absorbs current scientific knowledge and unites it in a structured approach.  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